Question

The equation of line v is y = -x + 9. Line w, which is perpendicular to line v, includes the

point (2, 3). What is the equation of line w?

Answer 1

y=x+1

Explanation:

In order to find the slope that is perpendicular to a given line, you have to take the fraction form (-1/1), flip it (1/-1), and give it an opposite sign (1/1). Now since we now know our slope we can draw y=x to find what do we have to add. Since y=x crosses (2,2), we know we have to add 1 to the equation in order to bring it to (2, 3).