A line passes through the points (1,


4) and (9,

4). Write its equation in slope-intercept form.
Write your answer using integers, proper fractions, and improper fractions in simplest form.

1 answer

The equation of a line passing through the points (1, -4) and (9, -4) can be written in slope-intercept form, y = mx + b, where m is the slope and b is the y-intercept.

First, let's find the slope:
m = (y2 - y1) / (x2 - x1)
m = (-4 -(-4)) / (9 - 1)
m = 0 / 8
m = 0

Since the slope is 0, the equation of the line will be in the form y = -4.

Therefore, the equation of the line passing through the points (1, -4) and (9, -4) is:
y = -4