1.
Which way does the graph of
y
= –2
x
2
open?
A.
up
B.
right
C.
left
D.
down
Hint
2.
Which table shows a quadratic relationship?
A.
B.
C.
D.
Hint
3.
Two friends are playing catch with a baseball. The ball's flight can be modeled by the equation
y
= 1 + 0.6
x
– 0.08
x
2
, in meters. What is the height of the ball at its highest point?
A.
1 m
B.
18.8 m
C.
3.78 m
D.
2.13 m
Hint
4.
Find the cubic equation.
A.
y
= 5
x
3
+ 2
x
B.
y
=
x
(
x
3
+ 1)
C.
y
= 3
x
D.
y
=
x
2
+ 5
Hint
5.
Find which equation does not represent a reciprocal relationship.
A.
–6 =
ef
B.
ab
= 3
C.
D.
Hint
6.
How does
b
affect graphs of equations in the form of
?
A.
positive values of
b
move the graph to the left, negative values move it to the right
B.
b
affects the width of the graph
C.
negative values of
b
move the graph to the left, positive values move it to the right
D.
b
affects the length of the graph
Hint
7.
Which differences are constant in a cubic equation?
A.
fourth
B.
second
C.
first
D.
third
Hint
8.
How many counterexamples are needed to prove a conjecture wrong?
A.
4
B.
1
C.
2
D.
3
Hint