Answer:
a) 3/5 or .6 km/hr
b) 9/4 or 2.25 km/hr
c) -2/1 or 2 km/hr
Step-by-step explanation:
the speed refers to the rate of change (or slope) of the segment
so we can use the slope formula: m = [tex]\frac{y-y}{x-x}[/tex]
AB = (3-0)/(5-0) = 3/5
CD = (12-3)/(12-8) = 9/4
EF = (12-0)/(14-20) = 12/-6 or -2/1
