1.
If
y
varies directly as
x
and
y
= 35 when
x
= 5, find
y
when
x
= 11.
A.
41
B.
77
C.
D.
7
Hint
2.
If
y
varies directly as
x
and
y
= 21 when
x
= 5, find
x
when
y
= 42.
A.
4.2
B.
5
C.
10
D.
21
Hint
3.
Suppose
y
varies directly as
x
, and
y
= -319 when
x
= 29. Write a direct variation equation that relates
x
and
y
.
A.
y
= -11
x
B.
y
= 11
x
C.
D.
Hint
4.
Graph
A.
B.
C.
D.
Hint
5.
If Dale Jarrett drives his car 1760 feet on the racetrack in 6 seconds, about how long will it take him to drive 2640 feet, a half mile?
A.
6 minutes, 40 seconds
B.
18 seconds
C.
9 seconds
D.
18 minutes
Hint