Question

4. Given point A (3, 8) and point B (-5, 1). Find the following:

a.) The coordinates of the midpoint of segment AB. Write your answer in this form: (x, y) (7 points)
b.) Using the distance formula, find the length of segment AB. Round to the nearest hundredth. (7 points)
c.) Find the slope of segment AB. (if your answer is a fraction, use the "/" symbol) (7 points)

Answer 1

a) M(-1, 4.5)

b) 10.63

c) 7/8

Explanation:

a)

x = (3 + (-5))/2 = -1

y = (8 + 1)/2 = 4.5

M(-1, 4.5)

b) d = sqrt[(x1-x2)^2 + (y1-y2)^2] = sqrt(113) = 10.63

c) m = (y2-y1)/(x2-x1) = 7/8