Question

Select the equation of the line that passes through the point (3, -1) and is perpendicular to the line on the graph.
(Graph with a line going through points zero comma two point five and four comma two point five.)

Answer 1

to find a perpendicular line, the slope for equation 1 and equation 2, when multiplied equal -1.

Answer 2

m=slope. (m1)(m2)=-1

Answer 3

To find the slope of the graph, use rise/run (in this case you are going to go "down" instead of "rise"). You begin at the y-intercept. Check where the line crosses a point on the graph.