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.
130.4 meters
B.
221.6 meters
C.
180.9 meters
D.
252.5 meters
Hint
2.
Which equation is in the same family as
y
=
x
2
?
A.
y
=
x
2
– 3
B.
y
= 2
x
– 3
C.
y
=
x
3
– 3
D.
y
= 2
x
2
– 3
Hint
3.
Find the equation of the graph below.
A.
y
=
x
2
+ 3
B.
y
= (
x
- 3)
2
C.
y
=
x
2
– 3
D.
y
= (
x
+ 3)
2
Hint
4.
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.
3.78 m
B.
18.8 m
C.
1 m
D.
2.13 m
Hint
5.
What is the new equation if the graph
y
= 2
x
3
– 6
x
2
is moved down 1 unit?
A.
y
= 2
x
3
– 6
x
2
– 1
B.
y
= 2
x
3
– 6
x
2
+ 1
C.
y
= 2
x
3
– 5
x
2
D.
y
=
x
3
– 6
x
2
Hint