Quadratic Functions: Factored Form [quiz]

The graph of the function f(x) = -(x + 6)(x + 2) is shown below.

A) The function is increasing for all real values of x where x < -4.

Part of the graph of the function f(x) = (x + 4)(x - 6) is shown below. Which statements about the function are true? Select two options.

A) The vertex of the function is at (1,-25). E) The graph is negative on the entire interval-4 < x < 6.

Which function has two x-intercepts, one at (0, 0) and one at (4, 0)?

A) f(x) = x(x − 4)

Which is the graph of f(x) = -(x + 3)(x + 1)?

B

The graph of the function f(x) = (x + 2)(x + 6) is shown below. Which statement about the function is true?

B) The function is negative for all real values of x where-6 < x < -2.

Which point is an x-intercept of the quadratic function f(x) = (x + 6)(x - 3)?

D) -6,0

The graph of the function f(x) = (x - 4)(x + 1) is shown below. Which statement about the function is true?

D) The function is decreasing for all real values of x where x < 1.5.

The function f(x) = (x − 4)(x − 2) is shown. What is the range of the function?

D) all real numbers greater than or equal to −1

What is the equation of the quadratic function with a vertex at (2,-25) and an x-intercept at (7,0)?

D) f(x) = (x + 3)(x - 7)

Which function has only one x-intercept at (−6, 0)?

D) f(x) = (x + 6)(x + 6)