Question

HELP ME PLEASE!!!!!

Answer 1

A) Measurement of People's Left foot (in inches):
30, 34, 35, 38, 40

Measurement of People's forearm (in inches):
14, 17, 18, 21, 23

b) My Two points = (30, 14) & (34, 17)
Rate of change, m = y2-y1/x2-x1
m = 17 - 14 / 34 - 30
m = 3 / 4

c) In order to form an equation, take any point, let say (14, 30)
y - y1 = m(x - x1)
y - 30 = 3/4 (x - 14)
y - 30 = 3x/4 - 10.5
y = 3x/4 + 19.5

Where, y = Length of left foot
x = Length of forearm

When x = 17 ft, it would be: 
y = 3(17) / 4 + 19.5
y = 12.75 + 19.5
y = 32.25 Ft

Hope this helps!