MATHEMATICS MIDDLE SCHOOL

The diagram below shows the graph of the quadratic function f (x) = ax² + 8x + c. calculate the value for each of the following. (a)c,
(b)m,
(c)a,
(d)n.

Answers

Answer 1

Answer:

Answer:

see explanation

Step-by-step explanation:

The y- intercept is at (0, 6) ⇒ c = 6

The x- coordinate of the vertex is at the midpoint of the zeros, that is

m = $(-3-1)/(2)$ = $(-4)/(2)$ = - 2

Since the zeros are x = - 3 and x = - 1 then the factors are (x + 3), (x + 1) and

f(x) = a(x + 3)(x + 1) = a(x² + 4x + 3)

Comparing with f(x) = ax² + 8x + 6 ⇒ a = 2

Thus

f(x) = 2x² + 8x + 6

Substitute m = - 2 into the equation for value of n

n = 2(- 2)² + 8(- 2) + 6 = 8 - 16 + 6 = - 2

Hence

c = 6, m = - 2, a = 2, n = - 2

Answer 2

Answer:

Answer:

c = 6, m = - 2, a = 2, n = - 2

Step-by-step explanation:

i m not sure but hope it is right

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hope it helps

Bella is baking 34 cookies for the holiday party tonight. She baked 18 before leaving for school and will bake the rest when she returns home.Which equation shows how many cookies Bella will bake when she returns home?

a: 18 = x − 34
b: 34 = 18x
c: 34 = x − 18
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Answers

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