Kelly is running home from the park. The function shown gives her distance, d, in miles, from home after t minutes. d = -0.15t + 2.3 What does -0.15t represent in this function?

Question

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Answer 1

the park is 2.3 miles from her home

each hour she walks 1.5 miles closer to home

-1.5 means the distance to home decreases at the rate of 1 1/2 miles per hour

in d=0 = -1.5t +2.3 she'll be home when t=2.3/1.5 = a little over 1 1/2 hours

2.3/1.5 = 1 8/15 hours

If you graphed distance against time, t on the x axis, d on the y axis, then -1.5 would be the slope of the line. 2.3 would be the y intercept. 1 8/15 would be the x intercept