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.
180.9 meters
C.
221.6 meters
D.
252.5 meters
Hint
2.
A parabola describes the shape of the graph of a(n) ___________.
A.
relation
B.
axis of symmetry
C.
quadratic function
D.
linear function
Hint
3.
Which diagram shows the graph of
y
= –
x
2
+ 2?
A.
B.
C.
D.
Hint
4.
Find the graph of
y
= -0.5
x
2
.
A.
B.
C.
D.
Hint
5.
Find the equation that represents the graph.
A.
y
= -
x
2
+ 2
B.
y
=
x
2
- 4
C.
y
= -
x
2
+ 4
D.
y
= -
x
2
- 4
Hint