PLEASE HELPMatch each interval with its corresponding average rate of change for the graph shown below.1. 0 ≤ x ≤ 1 -0.375 2. -2 ≤ x ≤ -1 -1.5 3. -2 ≤ x ≤ 0 -0.5 4. 1 ≤ x ≤ 2 -0.25 5. -1 ≤ x ≤ 0 -2 6. 0 ≤ x ≤ 2 -1
Question
Answer:
It is convenient to work with pairs of points on the graph from right to left.Between 1 and 2, the graph goes over 4 and down 1, so the slope is -1/4Between 0 and 1, the graph goes over 4 and down 2, so the slope is -2/4 = -1/2We can see a trend here. For each unit interval farther to the left, the slope doubles. So, we have ...1 ≤ x ≤ 2 : -0.250 ≤ x ≤ 1 : -0.5-1 ≤ x ≤ 0 : -1-2 ≤ x ≤ -1 : -2The average slope over the longer intervals will be the average of the slopes in the (same length) intervals that make up the longer interval.-2 ≤ x ≤ 0 : average of -2 and -1, so -1.50 ≤ x ≤ 2 : average of -0.5 and -0.25, so -0.375_____Going by the numbers on your list here, the matching (interval, slope) pairs are ... (1, 3), (2, 5), (3, 2), (4, 4), (5, 6), (6, 1)
solved
general
11 months ago
6776