Question

Write the equation of a line in slope intercept form that goes through the point (-2,10 with a slope of -3

Answer 1

First, we must plug into point-slope form.
Formula for point-slope:
`y-y1=m(x-x1)`
Plug in the values:
`y-10=-3(x+10)`
Solve.


`y-10 = -3(x+10) y-10=-3x - 30 + 10 --------+10 y= -3x - 20 = y = m(x) + b = Slope intercept form.`

Thus, the answer is:
`y=-3x-20`