Question

Write equations of the horizontal and vertical lines that pass through (-3,12).

Answer 1

x = -3

y = 12

Explanation:

For a point (x, y):

• The first number represents the point's position on the x-axis.
• The second number represents the point's position on the y-axis.

A horizontal line is represented by the equation y = a where (0, a) is the y-intercept of the line.

A vertical line is represented by the equation x = a where (a, 0) is the x-intercept of the line.

Therefore, for the given point (-3, 12):

• x = -3
• y = 12

Answer 2

horizontal line: y = 12

vertical line: x = -3

Explanation:

The horizontal line has 12 as the y-coordinate for all its points.

y = 12

The vertical line has -3 as the x-coordinate for all its points.

x = -3