Question

Calculate the slope of each line, then select the correct choice from the drop down menu to complete the statement. -The slope of AB is:(2/5(1/5(1/2(2/3The slope of ED is:(-1/2(-2(-3/4(-1/5Since AB and ED have:(the same(opposite reciprocal(completely different-slopes, they must be:(parallel(neither(perpendicular

Answer 1

The slope of AB = 1/2

The slope of ED = -2

1/2 and -2 are negative reciprocals of each other. This is the definition of perpendicular lines. Hence,

AB and ED are perpendicular.

The slope is also known as rise/run.

We take any point on a graph and move along the line to another point. The amount we moved in y direction divided by the amount moved in x direction is the slope.