AnswersJHS-Algebra 1A full yearSlopes of Parallel and Perpendicular Lines

Slopes of Parallel and Perpendicular Lines Answers

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1
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What is the slope of line p?

A
–3
B
–1/3
C
1/3
D
3
2
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What is the slope of a line that is perpendicular to line p?

A
–3
B
–1/3
C
1/3
D
3
3

The slope of side x is

A
–4
B
–1/4
C
1/4
D
4
4

The slope of side y is

A
–4
B
–1/4
C
1/4
D
4
5

The equation of the parallel line is .

A
y = (–5/2)x + 2
B
y = (–2/5) – (11/5)
C
y = (2/5)x – (19/5)
D
y = (5/2)x – 8
6

Which equation represents a line that is perpendicular to the line on the graph?

A
y = –4x + 3
B
Option
C
Option
D
y = 4x + 4
7

The slope of side w is

A
–4
B
–1/4
C
1/4
D
4
8

What can be concluded about the polygon? Check all that apply.

A
The slopes of side w and side z are reciprocals.
B
Opposite sides are parallel because their slopes are opposite reciprocals.
C
y x because .
D
because they have the same slope.
E
The polygon is a rectangle.
9

The slope of the graphed line is .

A
–5/2
B
–2/5
C
2/5
D
5/2
10

If the slope of the perpendicular line is , what is the y-intercept of the perpendicular line?

Question illustration
A
Option
B
Option
C
Option
D
b = 2
11

Step 4: Write the equation of the line parallel to 3x – y = 7 that passes through point (–5, –3).

A
y = 3x + 12
B
y = –3x + 12
C
y = –3x – 12
D
y = 3x – 12
12

The slope of side z is

A
–4
B
–1/4
C
1/4
D
4
13

The slope of the parallel line is .

A
–5/2
B
–2/5
C
2/5
D
5/2
14

An equation that can be used to find the y-intercept of the parallel line is .

A
–3 = (–2/5)(2) + b
B
–3 = (5/2)(2) + b
C
2 = (5/2)(–3) + b
D
2 = (2/5)(–3) + b
15

The y-intercept of the parallel line is .

A
–8
B
–11/5
C
2
D
9.5

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