Question

Write the equation in slope-intercept form of the line that has a slope of -3 and contains the point (1, 1).

Answer 1

Form of the problem will be y=mx+b. We know m:
\[y=-3x+b\]
Plug in the x and y values:
\[1=-3(1)+b\]
\[1=-3+b\]
\[b=4\]
Place the known value of b back into orginal formula:
\[y=-3x+4\]