Question

Write the equation of the line passing through the points (15,2) and (-5,-2)

Answer 1

In slope intercept form:

y= .2x -1

Explanation:

You can find the slope by using the formula (y2-y1)/(x2-x1).

Then you get: (-2-2)/(-5-15) = -4/-20 = .2

.2 is your slope(m).

Plug this information into point slope form: y-y1 = m(x-x1)

y-2 = .2(x - 15)

Distribute the .2.

y-2 = .2x - 3

Rearrange the formula to isolate y.

y = .2x -1