1.
A direct variation equation has (-2, 4) and (
n
, -8) as solutions. Find the missing value.
A.
16
B.
4
C.
1
D.
-2
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.
y
= 11
x
C.
D.
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
y
= 22
x
to find
x
when
y
= 88.
A.
x
= -4
B.
C.
D.
x
= 4
Hint
5.
Use the direct variation equation
to find
x
when
y
= -34.
A.
x
= 153
B.
x
=
C.
x
= -153
D.
x
= -
Hint