Question

If the equation of a line passes through the points (1, 3) and (0, 0), which form would be used to write the equation of the line?

Answer 1

I'd use the point-slope form, because it'd require the least amount of work.

The slope of this line is 3/1, or just 3.

Thus, y = mx + b  becomes  3 = 3(1) + b, and b = 0.  Thus, we get y = 3x (ans.)