Question

Write the slope-intercept equation of the line that passes through the given points (1,-7),(5,-15)

Answer 1

y=-2x+5

Explanation:

The slope is

`( - 15 - ( - 7))/(5 - 1) = ( - 8)/(4) = - 2`

Substituting into point-slope form,

y + 7 = -2(x-1)

y + 7 = -2x + 2

y = -2x + 5