## Hahawowoh one year ago Select the equation of the line that passes through the point (5, 7) and is perpendicular to the line x = 4 y=4 x=5 y=7 x=7

1. anonymous

If two lines are perpendicular, then their slopes have some relation: The product of slopes of the two lines, say line m and line n, will be $$-1$$.. Let us say line m has slope has $$s_1$$\) and line n has slope as $$s_2$$, then: $\large s_1 \times s_2 = -1$

2. anonymous

According to your question, the given perpendicular line ie x = 4 has slope ?? Can you tell its slope?

3. anonymous

I can draw it for you to understand it easily: |dw:1436871967158:dw|

4. UsukiDoll

maybe a drawing would help we are given a point (5,7) and a line x = 4

5. anonymous

If you can tell the slope of line $$x = 4$$, I can surely say that you can tell the slope of the other line which is perpendicular to it and passing through given points.. :)