1.
Which equation has a graph perpendicular to the graph 3
y
= 2
x
- 9?
A.
3
x
+ 2
y
= 7
B.
2
x
+ 3
y
= 4
C.
D.
y
= 2
x
+ 5
Hint
2.
Three out of the four equations listed below are equations of lines that are parallel to each other. Which equation
does not
have a graph that is a line parallel to the other three?
A.
B.
8
y
= - 6
x
C.
3
x
+ 4
y
= -16
D.
Hint
3.
Which pair of lines graphed below are parallel?
A.
k
and
m
B.
l
and
m
C.
k
and
n
D.
l
and
n
Hint
4.
Line segment
has endpoints A(-6, -3) and B(2, 1). Line segment
has endpoints C(-4, 8) and D(3, -6). Is
perpendicular to
? Why?
A.
Yes, the slopes are negative reciprocals.
B.
No, the lines are parallel.
C.
No, the lines intersect but not at right angles.
D.
Yes, the slopes are opposites.
Hint
5.
Write the slope-intercept form of an equation for a line perpendicular to the graph of
y
= -3
x
+ 5 and passes through the
x
-intercept of that line.
A.
B.
C.
D.
Hint