Perpendicular lines will have negative reciprocal slopes
B. y = -4x+ 5 and y = 1/4x + 4
D. y = x + 4 and y = -x + 4
E. y = -3 and x = -3
Half of 3.5 is 1.75 so 3.5 which is Monday plus Tuesday, 1.75 is 5.25 miles in all
The answers of the product is 1.8 * 0.63 = 1.134