Question: The function r ( x ) =-0.000345( x - 50) 2 + 2.1can be used to model the curve of a road designed to allow
The function r(x) =-0.000345(x- 50)2+ 2.1can be used to model the curve of a road designed to allow for water to run off in rainstorms depending on the distance from the shoulder of the road, x, in feet. A European firm studying these curves is going to convert feet to meters using the function m(x) = 0.3048x.
Which composition can be used to model the curve of the road in terms of meters?
m(r(x)) =-0.000105156(x- 50)2+ 2.1
m(r(x)) =-0.000105156(x- 50)2+ 0.64008
m(r(x)) =-0.000345(0.3048x- 50)2+ 2.1
m(r(x)) =-0.000345(0.3048x- 50)2+ 0.64008
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