1.
Which equation has a graph perpendicular to the graph 3
y
= 2
x
- 9?
A.
B.
3
x
+ 2
y
= 7
C.
y
= 2
x
+ 5
D.
2
x
+ 3
y
= 4
Hint
2.
Choose the slope-intercept form of the equation of the line that passes through (-2, 4) and is perpendicular to the graph of 2
x
+
y
= -20.
A.
y
= 2
x
+ 8
B.
y
= -2
x
C.
D.
Hint
3.
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.
3
x
+ 4
y
= -16
B.
8
y
= - 6
x
C.
D.
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 opposites.
B.
No, the lines are parallel.
C.
No, the lines intersect but not at right angles.
D.
Yes, the slopes are negative reciprocals.
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