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

y = mx +c

this gives

y = -3x + 4

Answer 2

You can use:
\[y-y_1=m(x-x_1)\]
where
\[\ m=-3,\ y_1=1\ and\ x_1=1\]