Question

two perpendicular lines have the same y-intercept. if the equation of one of those lines is y=0.5x - 1, what is the equation of the other line?

Answer 1

To find the equation of the next line we are going to find the negative inverse of the gradient 0.5.

0.5 is the same thing as saying a 1/2 and the negative inverse of 1/2 is -2.

Therefore the equation of the other line is y = -2x - 1