1.
If
n
is the number of seconds between the lightning and the thunder
and
f
(
n
) is the number of feet between you and the lightning, then
f
(
n
) = 1100
n
. If
n
is 7, find
f
(
n
).
A.
7700 feet
B.
8800 feet
C.
9000 feet
D.
157.1 feet
Hint
2.
Make a function table for
f
(
n
) =
n
- 3.
A.
B.
C.
D.
Hint
3.
If
d
= 55
t
represents the distance you travel at 55 miles per hour, find
(
t, d
) when
t
= 4 hours.
A.
(4, 220)
B.
(4, 55)
C.
(4, 110)
D.
(4, 165)
Hint
4.
Spencer and his friends are taking a hike. They have already traveled 5 miles. If they continue to hike at a rate of 3 miles per hour, which function relates the distance
d
traveled to the time
t
in hours?
A.
d
= 3
t
+ 5
B.
t
= 3
d
+ 5
C.
t
= 5
d
+ 3
D.
d
= 5
t
+ 3
Hint
5.
A taxi costs $5 plus $8 for each mile. Which function relates the cost
c
of a taxi ride to the distance
d
traveled?
A.
d
= 5c + 8
B.
d
= 8
c
+ 5
C.
c
= 8
d
+ 5
D.
c
= 5
d
+ 8
Hint