Concept explainers
Skills and Applications
Road Grade From the top of a mountain road, a surveyor horizontal measurements
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1500 | 1800 | 2100 |
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(a) Sketch a
(b) Use a straightedge to sketch the line that you think best fits the data.
(c) Find an equation for the line you sketched in part (b).
(d) Interpret the meaning of the slope of the line in part (c) in the context of the problem.
(e) The surveyor needs to put up a road sign that indicated the steepness of the road. For example, a surveyor would put up a sign that states “8% grade” on a road with a downhill grade that has a slope of
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