How do you graph a quadratic function?

Answers

Answer 1

Answer:

Step-by-step explanation:

Compare the equation with the standard form, y=ax2+bx+c . Since the value of a is positive, the parabola opens up.

So, y=0 implies, by the zero product property, x+4=0 or x−2=0 .

Substitute x=−1 in the equation y=−x2−2x+8 to find the y -coordinate of the vertex.


Related Questions

find the value of given expression

[tex] \sqrt{63 \times 63} [/tex]

Answers

Answer:

± 63

Step-by-step explanation:

[tex]\sqrt{63*63} = \sqrt{63^2} =[/tex] ± 63

Answer:

√(63×63)=√63²=±63 is your answer


HELP ASAP ITS SOON!! PLEASE

Jane buys a super-sized box of animal crackers. She reaches into the box and randomly selects one cracker. Assume that she returns
the cracker to the box and repeats the process 30 times. Based on the outcomes shown on the table, which THREE statements are
correct?
A)
P(Giraffe) - 0.20
B)
P(Lion) - 0.10
If Jane repeats the process 40 times, she can expect to draw 8 elephants.
D)
If Jane repeats the process 10 times, exactly one camel will be drawn.
E)
If Jane repeats the process 60 times, she will draw roughly 18 giraffes.

Answers

Answer:

b c e

Step-by-step explanation:

hope this helps! Just did it too!

Can someone please help me ASAP

Answers

Answer:

Step-by-step explanation:

AB = 5

AC = 6

BC = √(5² + 6²) = √61 ≈ 7.8 units

got confused on this problem ​

Answers

Answer:

vertical

Step-by-step explanation:

Answer:

A. vertical

Step-by-step explanation:

They are across from each other so they are vertical angles and are congruent.

7/15=x/45 find the missing value

Answers

Answer:

the answer to your question is 21

Solve for x and y simultaneously

Pls help me​

Answers

Step-by-step explanation:

Are the roots equal or unequal

If the CIRCUMFERENCE of a circle is 15.7, what is the AREA of the circle?

Answers

Answer:

the area of the circle is 19.615

The half-life of radium is 1690 years. If 90 grams are present now, how much will be present in 400 years?

Answers

Answer:

76.38 g

Step-by-step explanation:

Below expresion can be used in calculating the remaining amount of radium

A(t)=A(0) (1/2)^(t/h)

Let A(t)=the remaining amount of radium

Let A(0)= amount of radium at the beginning= 90 grams

t= amount of time in years= 400 years

h=the half-life time= 1690 years

A(t)=A(0) (1/2)^(t/h)

If we substitute the values into the expresion we have

A(t) = 90 × (1/2)^(400/1690)

A(t)= 76.38 g

PLEASE! PLEASE!!!!! ANSWER ASAP!!! YOU WILL GET BRAINLIEST!

Lab group A got a residual of 14.1005 grams of silver at the end of an experiment. Lab group B got a residual of 11.023 grams of silver at the end of a similar experiment. Using significant digits, find how much more silver lab group A got compared to lab group B.


A. 3.077 g

B. 3.0775 g

C. 3.078 g

D. 3.75 g

Answers

Answer:

C. 3.078

Step-by-step explanation:

14.1005 - 11.023 = 3.0775

Then you round the ten thousands place turning 75 into 8 equaling 3.078

Subtraction is a mathematical operation. The amount of silver lab group A got compared to lab group B is 3.0775 gm more.

What is subtraction?

Subtraction is a mathematical operation that reflects the removal of things from a collection. The negative symbol represents subtraction.

The amount of silver that group A got is 14.1005gm, while the amount of silver that group B got is 11.023 grams. Therefore, the amount of silver lab group A got compared to lab group B is,

14.1005 gm - 11.023 gm = 3.0775 gm

Hence, the amount of silver lab group A got compared to lab group B is 3.0775 gm more.

Learn more about Subtraction:

https://brainly.com/question/1927340

#SPJ2

100 POINTS WILL MARK BRAINLIEST
-109.3+x=184.9

Answers

Answer:

x  = 294.2

Step-by-step explanation:

(-109.3+x)+109.3=184.9 + 109.3

184.9+109.3=294.2

Answer:

x=294.2

Step-by-step explanation:

to check your answer...

-109.3+294.2=184.9

hope this helps have a good rest of your night/day :) ❤

can I please get the brainliest I only have 1 pls

An expression is written in the box.
x²+x-4
What is the value of this expression when x = -6?
0 -46
0 -35
O 26
38

Answers

Answer:

the solution to that is 26.

Answer:

26

Step-by-step explanation:

Substitute x = - 6 into the expression

x² + x - 4

= (- 6)² + (- 6) - 4

= 36 - 6 - 4

= 30 - 4

= 26

Simplify the fraction below into simplest form: 12/8​

Answers

The answer to this is quite simple 3/2


Explanation: We must find the largest number they can both be divided by and that is 4 then you get 3/2 you can’t divide those further without getting decimals so 3/2 is the simplest form have a nice day (:

+) Tickets to the spring festival are being sold online. The ticket price is $8 per person. The
expression 8t + 2 represents the total cost for t tickets, including a $2 service fee.
) What does the term 8t represent?
*) the price of the tickets
) the service fee
) the number of tickets
*) the total cost, including the service fee

Answers

Answer: What does the term 8t represent?

*) the price of the tickets

Step-by-step explanation:

3 people invest in a business in the ratio 2:3:5.if the profit from the business is $450 000.how much does each person get?​

Answers

Each person gets 45,000

Answer:

$90,000;$135,000;$225,000

Step-by-step explanation:

In this question we have to find the share of each person

First we have to find the sum of all the ratios,

[tex]2 + 3 + 5 \\ = 10[/tex]

Then we have to represent their share as a fraction and then multiply it by the total value,

The share of first person:-

[tex] \frac{2}{10} \times 450000 \\ = 2 \times 45000 \\ = 90000[/tex]

So the first person share is $90,000

The share of second person:-

[tex] \frac{3}{10} \times 450000 \\ = 3 \times 45000 \\ = 135000[/tex]

So the second person share is $135,000

The share of third person:-

[tex] = 450000 - (135000 + 90000) \\ = 450000 - 225000 \\ = 225000[/tex]

So the third person share is $225,000

(This is your answer hope it helps :))

Is 4/9 closer to 1 or 1/2?

Answers

Answer:

1/2

Step-by-step explanation:

hope this helps!

5 Gretchen borrowed $50 from her parents for 3 months. They charged her 14% interest. How much does she need to pay her parents to pay off the loan?​

Answers

Step-by-step explanation:

simple interest = principal×rate×time

S.I = $50×(14÷100)×3

S.I=$50×0.14×3

S.I=$21

Amount= principal + simple interest

Amount = $50+$21

Amount = $71

Three less than a number is 14 more than 2 times that number. What is the number?

Answers

Answer:

-20 = - 20

Step-by-step explanation:

Suppose the number is x

three less than a number means x - 3 which is equal to 14 more than twice a number means 2x +14.

So we can write

x - 3 = 2x +14 - - - - - A

subtract x from both sides

x - x - 3 = 2x - x +14

-3 = x +14

Subtract 14 from both sides

-3 - 14 = x +14 - 14

-17 = x

Or x = - 17

Now can verify our answer by putting the value of x in Eq A

-17 - 3 = 2 x (-17) +14

-20 = - 34 +14

-20 = - 20

I hope this helps.       :)

Please help me solve these exponents

Answers

I don't know the answers but you can figure these out by using desmos online, it's a scientific calculator website that's easy to use

cual es la expresión equivalente a 6(12+8)

Answers

Answer: 20(6)

Step-by-step explanation: 20 times 6 because 12+8 equals 20 and you would multiply it by 6.

what is the answer to
x+5=10

Answers

X equals 5 because 10-5 =5 have a good day !

Write the equation in standard form of the line that
passes through the point (4, -2) and has a slope of -1/2.

Answers

Answer:

x+2y=0

Step-by-step explanation:

y-y1=m(x-x1)

y-(-2)=-1/2(x-4)

y+2=-1/2x+4/2

y+2=-1/2x+2

y-(-1/2x)=2-2

y+1/2x=0

1/2x+y=0

2(1/2x+y)=2(0)

x+2y=0

A square has a side length of 6 inches. It is enlarged and the new side length is 18 inches. What is the scale factor

Answers

The scale factor is 2

In the two diagrams, all the triangles weigh the same and all the squares weigh the same.



For each diagram, come up with...



1. One thing that "must" be true



2. One thing that "could" be true



3. One thing that "cannot possibly" be true

Answers

Answer:

1. A triangle weighs more than a square.

2. A triangle could weigh more than a circle.

3. A triangle cannot possibly weigh more than 4 squares and a circle.

Taylor noticed that for the rectangle below she could multiply 2 times 3 to get its area of 6 square inches. How else could she find the area?

Answers

Answer:

Add 2+2+3+3

Step-by-step explanation:

Correct me if i'm wrong but that's my answer. I studied this 3 years ago.

Answer:

3 x 2 or 3 + 3

Given: Taylor noticed the rectangle she could multiply 2 times 3 to get its area of 6 square inches.

so, if we did 3 times 2 its 6 but if we did 3 + 3 it also 6 so therefore she could do 3 x 2 or 3 + 3 to find the area.

Step-by-step explanation:

WHAT numbers do 12 and 10 go in evenly

Answers

Answer:

Step-by-step explanation:

All the factors of 12

So 1, 2, 3, 4, 6 and 12 are factors of 12.

Answer:

answer is 2×2×3×5= 4×15=60 im srry if you did not mean this but anyways have nice day

Step-by-step explanation:

12,10| 2

6,5| 2

3,5| 3

1,5| 5

1,1

I NEED HELP!!! ASAP!
The image of point (2,1) under a rotation -540 degrees about the origin is:

a. (-1,2)
b. (-2,-1)
c. (1,2)
d. (2,1)
e. none of the above

Answers

I think the correct answer is B.

En la tienda de don chuy vender tres cajas de colores de 36 piezas en $258,en cambio en la papeleria de la ciudad encontramos 5 piesas delos colores en$440

Answers

Responder:

Tienda de la ciudad

Explicación paso a paso:

Para obtener el precio unitario por caja:

Importe pagado / número de cajas.

Para cajas de 3 colores:

$ 258/2 = $ 129

Para las cajas de color /:

$ 440/5 = $ 88

$ 88 <$ 129

Por lo tanto, las cajas de colores son más baratas en la tienda de la ciudad.

25% of
___= 4 what is the correct answer?

Answers

Answer:

Answer is 16%

Step-by-step explanation:

I hope it's helpful!

Answer:

16

Step-by-step explanation:

Do 4/ 1 over 4.  This simplifies to 4*4 so your answer is 16.  To check 4/16 = 0.25

can someone please help me!!

Answers

Answer:

the difference is the rate of change and the payment plan

Step-by-step explanation:

This week at the farmer's market the price of oranges per pound has decreased by 20% compared to last week. If the price of oranges this week is $3.89, which equation would represent the price of oranges per pound last week, p?

Answers

Answer:

$4.8625

Step-by-step explanation:

$3.89 + 20%

$3.89 = 80%

$3.89 × ¼ = $0.9725

$0.9725 × 5 = $4.8625

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