Question

Write the equation of the line that goes through the point (2,8) and has a slope of -2.

Answer 1

Having the slope, we can find the equation as following:

$\begin{gathered} y-8=-2(x-2)=-2x+4 \\ y=-2x+4+8=-2x+12 \end{gathered}$

so the equation is:

$y=-2x+12$