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.
252.5 meters
D.
180.9 meters
Hint
2.
Find the graph of
y
= -0.5
x
2
.
A.
B.
C.
D.
Hint
3.
Find the graph of
y
= 2
x
2
.
A.
B.
C.
D.
Hint
4.
Find the equation that represents the graph.
A.
y
= 2
x
2
B.
y
= -2
x
2
C.
y
= 0.25
x
2
D.
y
= -4
x
2
Hint
5.
Find the graph of
y
= -5
x
2
+ 3.
A.
B.
C.
D.
Hint