1.
If
y
varies directly as
x
and
y
= 35 when
x
= 5, find
y
when
x
= 11.
A.
7
B.
41
C.
77
D.
Hint
2.
If
y
varies directly as
x
and
y
= 21 when
x
= 5, find
x
when
y
= 42.
A.
21
B.
10
C.
4.2
D.
5
Hint
3.
A direct variation equation has (-2, 4) and (
n
, -8) as solutions. Find the missing value.
A.
4
B.
-2
C.
1
D.
16
Hint
4.
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
5.
Graph
A.
B.
C.
D.
Hint