1.
If a rocket is fired from the ground with an initial velocity of 75 meters per second, then the height of the rocket after
t
seconds is
h
= 75
t
- 4.9
t
2
. Find the height of the rocket after 3 seconds.
A.
180.9 meters
B.
130.4 meters
C.
221.6 meters
D.
252.5 meters
Hint
2.
Which equation is in the same family as
y
=
x
2
?
A.
y
= 2
x
2
– 3
B.
y
= 2
x
– 3
C.
y
=
x
2
– 3
D.
y
=
x
3
– 3
Hint
3.
Describe how the graph of
y
= (
x
+ 1)
2
differs from the graph of
y
=
x
2
.
A.
the graph of
y
= (
x
+ 1)
2
moved down 1 unit
B.
the graph of
y
= (
x
+ 1)
2
moved 1 unit to the left
C.
the graph of
y
= (
x
+ 1)
2
moved up 1 unit
D.
the graph of
y
= (
x
+1)
2
moved 1 unit to the right
Hint
4.
Find the cubic equation.
A.
y
= 5
x
3
+ 2
x
B.
y
= 3
x
C.
y
=
x
(
x
3
+ 1)
D.
y
=
x
2
+ 5
Hint
5.
What is the new equation if the graph
y
= 2
x
3
– 6
x
2
is moved down 1 unit?
A.
y
=
x
3
– 6
x
2
B.
y
= 2
x
3
– 5
x
2
C.
y
= 2
x
3
– 6
x
2
+ 1
D.
y
= 2
x
3
– 6
x
2
– 1
Hint