Question

Select the equation of the line that passes through the point (5, 7) and is perpendicular to the line x = 4.

Answer 1

so hmmm x = 4 , is just a vertical line, that is, no matter what value "y" is, "x" will always be 4

thus, a perpendicular line to it, can only be a horizontal one, in this case, that passes through 5,7, notice the picture below