Question

Which equation of the line passes through the point (0,4) and is perpendicular to the lines whose equation is y=-1/2x + 3

Answer 1

y = 2x+4

Perpendicular lines, when you multiply their gradient, you will get -1. You can also find the negative reciprocal, which is 2. The point (0,4) is the y intercept, which is for. Hence, the equation is y=2x+4

Hope this helps!