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.
252.5 meters
C.
130.4 meters
D.
221.6 meters
Hint
2.
What is the equation of the graph shown?
A.
y
= -
x
2
- 2
x
- 1
B.
y
= -
x
2
+2
x
- 1
C.
y
=
x
2
- 2
x
+ 1
D.
y
=
x
2
+ 2
x
+ 1
Hint
3.
What is the equation of the graph shown?
A.
f
(
x
) = 2
x
2
+ 2
x
+ 1
B.
f
(
x
) = -2
x
2
+ 2
x
+ 1
C.
f
(
x
) = 2
x
2
- 2
x
+ 1
D.
f
(
x
) = -2
x
2
+ 2
x
- 1
Hint
4.
Which equation is in the same family as
y
=
x
2
?
A.
y
= 2
x
– 3
B.
y
=
x
3
– 3
C.
y
= 2
x
2
– 3
D.
y
=
x
2
– 3
Hint
5.
Find a quadratic equation for the table.
A.
y
= 5
x
2
– 1
B.
y
= 5
x
2
– 2
C.
y
=
x
2
– 5
D.
y
= 5
x
2
+ 1
Hint