Under ideal conditions, if a person driving a vehicle slams on the brakes and skids to a stop, the speed of the vehicle v(x) (in miles per hour) is given approximately by v(x) = C√x, where x is the length of skid marks (in feet) and C is a constant that depends on the road conditions and the weight of the vehicle. For a particular vehicle, 

v(x) = 7.08√x and 4 ≤ x ≤ 144.

(A) Describe how the graph of function v can be obtained from the graph of one of the basic functions in Figure 1.
(B) Sketch a graph of function v using part (A) as an aid.

Figure 1

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f(x) h(x) m(x) -5 5 -5 -5 -5 (A) Identity function f(x) = x (B) Square function h(x) = x (C) Cube function m(x) = x Domain: R Domain: R Domain: R Range: R Range: [0, c0) Range: R n(x) p(x) g(x) -5 5 (D) Square root function n(x) = Vx Domain: [0, 0) Range: [0, 0) (E) Cube root function (F) Absolute value function p(x) = VT g(x) = |x| Domain: R Domain: R Range: R Range: [0, 0)