Using your calculator, approximate {{MATH_2}} by computing the average rate of change in {{MATH_3}} over the interval {{MATH_4}}. {{CMD_5}} The average rate of change is {{MATH_6}}{{CMD_7}}. (Round to two decimal places.) {{COMMENT_8}} {{CMD_9}} Using the graph of {{MATH_10}} provided below, do you think the estimate of {{MATH_11}} you obtained above is an overestimate or an underestimate?