Question

Which pair of slopes could represent perpendicular lines? . 1.) 1/7, 7. 2.) 1/2, 2/4. 3/) -3/4, 4/3. 4.) 1/3, 1/3

Answer 1

3/) -3/4, 4/3. represent perpendicular lines

Answer 2

The slopes of the perpendicular lines are the negative reciprocals of each other. When they are multiplied together, the product should be -1. From the choices, the answer would be third choice, -3/4 and 4/3. These numbers are negative reciprocals of each other and would result to -1 when multiplied.