Function g has a vertex at (2,4) and the parabola opens downwards.

Which of the following statements is true?

A.
The y-intercept of function f is greater than the y-intercept of function g.
B.
The minimum of function f is at (-5,6).
C.
The minimum of function g is at (2,4).
D.
The y-intercept of function f is less than the y-intercept of function g.

Respuesta :

Answer:D

Step-by-step explanation:

he vertex form f(x) = a (x - h)2 + k and of the standard form f(x) = a x2 + b x + c are presented with several examples and their detailed solutions.

We start with the graph of the basic quadratic function f(x) = x2, then we graph examples of quadratic functions in vertex form and then in standard form.