Algebra 2B Discussion Unit 1
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This will help students who are stuck on the Race Pilot problem in the Unit 1 Discussion.
Step 1
The hint was that distance traveled equals average rate multiplied by the time spent. Solve for rate in terms of distance and time. |
Step 2
The problem said that the final score equals the average rate of speed minus the penalty points. Replace the rate with the expression we found earlier (in terms of distance and time). Then substitute the distance of the track which is 720 miles. |
The graph of the function is below. Note that the intersection of the two graphs is NOT point (150, 3).