Question

Choose the equation of the horizontal line that passes through the point (-5, 9).

Oy-5
O y-9
Ox=-5
OX-9

Answer 1

Answer: y = 9

Explanation:

First, we must take into account that a horizontal line is needed (left to right). Any equation that is only a horizontal line, will be y is equal to some numerical value, with no variables.

In other words, in order to create a horizontal line, all y values must be constant.

In order to set what y is equal to, you just look at the y value of the coordinate (in this case 9).

You can even graph it on desmos (an online free graphing calculator) if you are not sure. Hope this helps :)

Answer 2

y = 9

Explanation:

The equation of a horizontal line is of the form y = b, where b is the y-intercept.

Since the line passes through the point (-5, 9), the y-intercept is 9.

Therefore, the equation of the horizontal line is y = 9.