Question

A line passes through the point (0, –4) and has a slope of . What is the equation of the line?

Answer 1

Your question is missing the slope, but this is the equation we'll be using:
\[y-y_1=m(x-x_1)\]Where m is the slope, and x_1,y_1 are the coordinates of any point on the line. You have a point on the line and the slope (although the slope is missing in this question) so plug in and you can solve.