Question

A snowstorm took place during the weekend. Meteorologists tracked the total amount of snowfall for the storm. For the first 2 hours, it snowed at a rate of 1 inch per hour. The snow stopped for an hour and a half, then resumed at a rate of 1.5 inches per hour for the next 3 hours. Based on this information, what scale would work best for representing the data on the x-axis?(1 point)
Responses

3 hrs
3 hrs

2 hrs
2 hrs

5 hrs
5 hrs

0.5 hrs
0.5 hrs
Question 2
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Title: A piecewise linear function consisting of five parts is plotted in quadrant 1 of a coordinate plane.

On Friday, Kaitlyn went to the park to work out. She started with a slow jog at a constant rate for five minutes. She then increased her speed to a faster, constant pace for seven minutes. She took a three-minute break, then ran for another 7.5 minutes at a constant pace to finish her two-mile run. She rested for the remainder of the time.

(2 points)
During what domain interval will she be at 1.25 miles?

≤
x
≤

Answer 1

Question 1 answer: 0.5 hrs — half-hour increments let you mark 2 hrs (4 halves), 1.5 hrs (3 halves) and 3 hrs (6 halves) cleanly.

Question 2 answer: 12 ≤ x ≤ 15 (minutes).
Reason: 5 + 7 = 12 minutes, so the 3-minute break is from minute 12 to minute 15, during which her distance stays constant (1.25 miles).