# Worksheet: Equations of Horizontal, Parallel, and Perpendicular Straight Lines

In this worksheet, we will practice finding the equation of a straight line that is either horizontal, parallel, or perpendicular to another line.

**Q2: **

Lines and are perpendicular to each other and meet at . If the slope of is , what is the equation of line ?

- A
- B
- C
- D
- E

**Q4: **

Which axis is the straight line parallel to?

- A -axis
- B -axis

**Q5: **

Write, in the form , the equation of the line that is perpendicular to the line and that intercepts the -axis at 20.

- A
- B
- C
- D
- E

**Q6: **

Write, in the form , the equation of the line through that is perpendicular to , where .

- A
- B
- C
- D
- E

**Q7: **

In the figure below, and length units. If the equation of is , find the equation of .

- A
- B
- C
- D

**Q8: **

Find the equation of the straight line passing through the point and perpendicular to the straight line passing through the points and .

- A
- B
- C
- D

**Q9: **

If the straight line passing through the two points and is perpendicular to the straight line whose equation is , find the value of .

- A
- B33
- C5
- D

**Q11: **

The straight lines and are parallel. What is the value of ?

**Q12: **

The line is perpendicular to the line through points and . What is ?

**Q13: **

The square has an area of 13, and the corner has coordinates . Give the equation of in the form .

- A
- B
- C
- D
- E

**Q15: **

The line meets the - and -axis at points and respectively. Find the equation of the line perpendicular to and passing through its midpoint.

- A
- B
- C
- D

**Q16: **

Given and , what is the perpendicular bisector of the segment ?

- A
- B
- C
- D

**Q17: **

Let and be the - and -intercepts of the line . Give the equation of the line parallel to the -axis that passes through the midpoint of .

- A
- B
- C
- D

**Q18: **

Which axis is the straight line parallel to?

- A -axis
- B -axis

**Q19: **

If lines and are perpendicular, which of the following products equals ?

- A and
- B and
- C and
- D and