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# Functions

# Functions: Inequalities for All! Quiz

Think you’ve got your head wrapped around

*? Put your knowledge to the test. Good luck — the Stickman is counting on you!***Functions**Q. Which of the following could be the graph of

*y*= (*x*– 1)(*x*+ 2)?image

*f*(

*x*)

*g*(

*x*)

*h*(

*x*)

*u*(

*x*)

None of them.

Q. What are the

*x*-intercepts of the function*y*= - 3*x*^{2}– 6*x*+ 24?4, -2

-6, 4

-4, 2

6, -4

This function has no

*x*-intercepts.Q. What is the vertex of the parabola given by the equation

*y*= 4*x*^{2}+ 9*x*+ 6?This parabola has no vertex.

Q. Which of the following statements is false?

The graph of a quadratic function need not have any

*x*-intercepts.The graph of a quadratic function can have multiple

*y*-intercepts.The graph of a quadratic function must have exactly one vertex.

The graph of a quadratic function must cross the

*y*axis at least once.You can't ask your calculator the answer to this one, because it doesn't do so well with non-number problems.

Q. Which of the following could be the graph of the function

*y*= -(*x*^{2}+ 1)?*f*(

*x*)

*g*(

*x*)

*h*(

*x*)

*u*(

*x*)

None of them.

Q. Which of the following could be the graph of the function

*y*= -3^{-x}?*f*(

*x*)

*g*(

*x*)

*h*(

*x*)

*u*(*x*)

None of them.

Q. Which of the following could be the graph of the function

*y*= 5 – 3^{x}?*f*(

*x*)

*g*(

*x*)

*h*(

*x*)

*u*(

*x*)

None of them.

Q. Which of the following points is in the relation described by the inequality ?

(6, -1)

(0, -1)

(-2, -2)

(-1, 2)

(2, 0)

Q. Which of the following could be the graph of the inequality

*y*> 7*x*– 6?Inequality 1

Inequality 2

Inequality 3

Inequality 4

None of them.

Q. Which of the following could be the graph of the inequality -

*x*≥ 4?Inequality 1

Inequality 2

Inequality 3

Inequality 4

None of them.