Answer:
45 mph
Explanation:
Choose any 2 pairs of points and find the slope to find the rate in mph:
Use (2, 90) and (6, 270)
Slope = (y2 - y1) / (x2 - x1)
Slope = rate = (270 - 90) / (6 - 2) = 180 / 4 = 45 mph
Answer: 45 miles per hour
90 miles/ 2 hours = 45 miles per hour
135 miles/ 3 hours = 45 miles per hour
225 miles/ 5 miles = 45 miles per hour
270 miles/ 6 hours = 45 miles per hour
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