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Which translation maps the vertex of the graph of the function f(x) = x2 onto the vertex of the function g(x) = x2 – 10x +2?

Respuesta :

Answer:

< 5, - 23 >

Step-by-step explanation:

The vertex of f(x) = x² is at the origin (0, 0)

Find the vertex of g(x) = x² - 10x + 2

Given a quadratic in standard form : ax² + bx + c : a ≠ 0

The the x- coordinate of the vertex is

[tex]x_{vertex}[/tex] = - [tex]\frac{b}{2a}[/tex]

g(x) = x² - 10x + 2 ← is in standard form

with a = 1 and b = - 10, thus

[tex]x_{vertex}[/tex] = - [tex]\frac{-10}{2}[/tex] = 5

Substitute x = 5 into g(x) for the corresponding y- coordinate

g(5) = 5² - 10(5) + 2 = 25 - 50 + 2 = - 23

vertex = (5, - 23)

Thus the translation from (0, 0 ) → (5, - 23) is

< 5, - 23 >