Quadratic Functions: Vertex Form

Question 1

The function f(x) = –0.3(x – 5)2 + 5 is graphed. What are some of its key features? Check all that apply.

Revolt · Accepted Answer

A: The axis of symmetry is x = 5.; B: The domain is {x| x is a real number}.; C: The function is increasing over (–∞, 5).

Question 2

Positive values of k shift the graph .

Revolt · Accepted Answer

D: up

Question 3

If h = 3, the vertex shifts to .

Revolt · Accepted Answer

D: (3, 0)

Question 4

Which graph could represent the function f(x) = (x + 3.8)2 – 2.7?

Revolt · Accepted Answer

D:

Question 5

Negative values of k shift the graph .

Revolt · Accepted Answer

A: down

Question 6

If h = –5, the vertex shifts to .

Revolt · Accepted Answer

A: (–5, 0)

Quadratic Functions: Vertex Form Answers