Question

You exercise for one hour each day and you burn 8.5 calories per minute. If you graphed the number of calories you burned as the output, compared to the number of minutes you exercise as input, what would the graph look like? Which of the following would not be true? A. The graph would be a line. B. The graph would rise from left to right. C. The graph would be only in the first quadrant. D. The larger the number of minutes, the fewer calories you would burn

Answer 1

Well, when the exercise is occurring, there is no break in the burning of calories, so the graph has to be a line. The amount burned is always positive, so it is in the first quadrant. The key point is that the total calories burned is always increasing, so the graph does rise from left to right. If you think onwards from this, D has to be false as the time and calories burned increase together.