Question

How do you find an equation in point-slope form of the line having the specified slope m = -7 and containing the point (0, -4)?

Answer 1

y= -7x-4

Standard slope intercept form is y= mx+b. Here m= -7. hence it is y= -7x+b. Since the line passes through (0,-4), plug in x=0, y=-4 in this equation to get b=-4. Hence the required equation would be y= -7x-4