# Identifying Parallel and Perpendicular Lines - #2 (Grade 9)

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## Identifying Parallel and Perpendicular Lines - #2

1.

Line Q has a slope of 4 and line R has a slope of -1/4. They are

- parallel
- the same
- perpendicular
- supplementary
- none of the above

2.

The equation of line L is 6x + 5y = 3, and the equation of line Q is 5x - 6y = 0. Which statement about the two lines is true?

- Lines L and Q have the same y-intercept.
- Lines L and Q are parallel.
- Lines L and Q have the same x-intercept.
- Lines L and Q are perpendicular.

3.

Determine if the lines given are parallel, perpendicular, or neither.

[math]y - 4 = 3(x +5)[/math]

[math]y + 3 = -1/3(x + 1) [/math]

[math]y - 4 = 3(x +5)[/math]

[math]y + 3 = -1/3(x + 1) [/math]

- parallel
- perpendicular
- neither

4.

Choose how the lines [math] y = 3x+4[/math] and [math] y =1/3 x - 4[/math] are related.

- Parallel
- Perpendicular
- Neither

5.

The lines [math]y = -2x - 4[/math] and [math]y = -2x + 4[/math] are

- Parallel
- Perpendicular
- Neither
- Both

6.

What is the slope of a line that is perpendicular to y = 3x + 1?

- -1/3
- 3
- 1/3
- -3

7.

Which equation represents a line that is parallel to the line whose equation is 2x + 3y = 12?

- 6y - 4x = 2
- 6y + 4x = 2
- 4x - 6y = 2
- 6x + 4y = -2

8.

Which line is parallel to y = 3x - 7?

- [math] y = − 3x − 7 [/math]
- [math]y = −x/3 + 2[/math]
- [math]y = x/3 + 7[/math]
- [math] y = 3x + 10 [/math]

9.

Which line is perpendicular to -4x + y = 5 ?

- [math] y = -4x + 5 [/math]
- [math]y = x/4 + 5[/math]
- [math] y = 4x - 5 [/math]
- [math] y = -x/4 + 5 [/math]

10.

Which equation represents a line that is parallel to [math]y = -5/4x + 2[/math] ?

- [math]y = -5/4 x +1[/math]
- [math]y = -4/5 x +2[/math]
- [math]y = 4/5 x + 3[/math]
- [math]y = 5/4 x +4[/math]

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