emmaisnthere emmaisnthere

08-06-2021
Mathematics

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This graph represents a quadratic function. What is the function's equation written in factored form and in vertex form?
(graph in picture)

This graph represents a quadratic function What is the functions equation written in factored form and in vertex form graph in picture class=

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ferrybukantoro ferrybukantoro

08-06-2021

Step-by-step explanation:

f(x) = a(x-x1) (x-x2)

from the vertex, we get a:

0 = a(4-2)²- 8

4a = 8

a = 2

so, the equation:

f(x) = 2(x-0) (x-4)

f(x) = 2x(x-4)

f(x) = 2x² -8x

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