Chapter 2: Problem 2
(a) plot the points, (b) find the distance between the points, and (c) find the midpoint of the line segment joining the points. \((1,12),(6,0)\)
Chapter 2: Problem 2
(a) plot the points, (b) find the distance between the points, and (c) find the midpoint of the line segment joining the points. \((1,12),(6,0)\)
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Get started for freeThe number of horsepower \(H\) required to overcome wind drag on an automobile is approximated by \(H(x)=0.002 x^{2}+0.005 x-0.029, \quad 10 \leq x \leq 100\) where \(x\) is the speed of the car (in miles per hour). (a) Use a graphing utility to graph the function. (b) Rewrite the horsepower function so that \(x\) represents the speed in kilometers per hour. [Find \(H(x / 1.6) .]\) Identify the type of transformation applied to the graph of the horsepower function.
Show that \(f\) and \(g\) are inverse functions by (a) using the definition of
inverse functions and (b) graphing the functions. Make sure you test a few
points, as shown in Examples 6 and 7 .
\(f(x)=\frac{1}{1+x}, x \geq 0\)
\(g(x)=\frac{1-x}{x}, \quad 0
Find (a) \((f+g)(x)\), (b) \((f-g)(x)\), (c) \((f g)(x)\), and (d) \((f / g)(x)\). What is the domain of \(f / g\) ? \(f(x)=\sqrt{x^{2}-4}, \quad g(x)=\frac{x^{2}}{x^{2}+1}\)
Find the inverse function of the function \(f\) given by the set of ordered pairs. \(\\{(-1,1),(-2,2),(-3,3),(-4,4)\\}\)
Describe the sequence of transformations from \(f(x)=\sqrt[3]{x}\) to \(y\). Then sketch the graph of \(y\) by hand. Verify with a graphing utility. \(y=2 \sqrt[3]{x-2}+1\)
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