1.
If
y
varies directly as
x
and
y
= 35 when
x
= 5, find
y
when
x
= 11.
A.
B.
7
C.
77
D.
41
Hint
2.
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.
C.
D.
y
= -11
x
Hint
3.
Suppose
y
varies directly as
x
, and
y
= -65 when
x
= -26. Write a direct variation equation that relates
x
and
y
.
A.
B.
C.
D.
Hint
4.
Use the direct variation equation
to find
x
when
y
= -34.
A.
x
= -153
B.
x
= 153
C.
x
=
D.
x
= -
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.
9 seconds
B.
18 minutes
C.
6 minutes, 40 seconds
D.
18 seconds
Hint