3 years ago

Use the vertex

Mathematics

1 answer:

xxTIMURxx [149]3 years ago

4 0

Answer:

Step-by-step explanation:

Let the quadratic function be

y=a(x+4)²-1

∵(-7,8) lies on it.

8=a(-7+4)²-1

8+1=a(-3)²

9a=9

a=9/9=1

so quadratic function is

f(x)=1(x+4)²-1

f(x)=x²+8x+16-1

so quadratic function is

f(x)=x²+8x+15

You might be interested in

The sum of two numbers is 60. The greater number is 6 more than the smaller number. Which equation can be used to solve for the

WARRIOR [948]

Answer:

1) x + (x + 6) = 60

Step-by-step explanation:

Let the numbers be x and y

x + y = 60
y = x + 6

Then, substituting y:

x + (x + 6) = 60

Correct option is 1)

7 0

3 years ago

Use the order of operations to simplify this expression. 2 + 4(5 − 8)

Blizzard [7]

Answer:

5 - 8 = -3

4 x -3 = -12

2 + -12 = -10

Step-by-step explanation:

5 0

3 years ago

Last week Isaiah and his roommates ate 3/8 of a carton of yogurt, and this week they ate

Sergio [31]

Answer: 5/24

Step-by-step explanation:

The problem is 7/12-3/8. I got a common denominator of 24, then multipled 8 and 3 by 3, and 7 and 12 by 2. The problem is now 14/25-9/24, which equals 5/24

6 0

3 years ago

What is the value of 5.4?

Galina-37 [17]

The value is .54 hope this helped

5 0

3 years ago

0.325 is _____ 100 percent.

dexar [7]

Answer:

0.00325

Step-by-step explanation:

0.325/100

8 0

3 years ago