Functions
Think You Got it Down?
Test your knowledge again:
Functions: Inequalities for All! Quiz
Think you’ve got your head wrapped around Functions? Put your knowledge to
the test. Good luck — the Stickman is counting on you!
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 = - 3x2 – 6x + 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 = 4x2 + 9x + 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 = -(x2 + 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 – 3x?
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 > 7x – 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.
