91Ó°ÊÓ

Find the domain of the function. Do not use a graphing calculator: $$f(x)=4-\frac{2}{x}$$

A function \(f\) is a linear function if it can be written as \(f(x)=m x+b,\) where \(m\) and \(b\) are constants. If \(m=0,\) the function is a(n) _____ function \(f(x)=b .\) If \(m=1\) and \(b=0,\) the function is the _____.

In \(2013,\) IBM (International Business Machines) received 2133 more patents than Samsung. Together, they received \(11,485\) patents. (Source: IFI Claims Patent Services) How many patents did each company receive?

Graph the equation in the standard window and in the given window. Determine which window better shows the shape of the graph and the \(x\) - and y-intercepts. $$\begin{aligned} &y=-2 x+24\\\ &[-15,15,-10,30], \text { with } \mathrm{Xscl}=3 \text { and } \mathrm{Yscl}=5 \end{aligned}$$

Graph the equation in the standard window and in the given window. Determine which window better shows the shape of the graph and the \(x\) - and y-intercepts. $$\begin{aligned} &y=-\frac{1}{6} x^{2}+\frac{1}{12}\\\ &[-1,1,-0.3,0.3], \text { with } \mathrm{Xscl}=0.1 \text { and }\\\ &\mathrm{Yscl}=0.1 \end{aligned}$$

Water accounts for \(55 \%\) of a woman's weight (Source: ga.water.usgs.gov/edu). Lily weighs 135 lb. How much of her body weight is water?

Water accounts for \(60 \%\) of a man's weight (Source: ga.water.usgs.gov/edu). Jake weighs 186 lb. How much of his body weight is water?

City Cabs charges a \(\$ 1.75\) pickup fee and \(\$ 1.50\) per mile traveled. Diego's fare for a crosstown ride is \(\$ 19.75 .\) How far did he travel in the cab?

Find the distance between the pair of points. Give an exact answer and, where appropriate, an approximation to three decimal places. $$(-11,-8) \text { and }(1,-13)$$

The elevations of the 31 NFL stadiums range from 3 ft at Mercedes-Benz Superdome, New Orleans, Louisiana, to \(5280 \mathrm{ft}\) at Sports Authority Field at Mile High, Denver, Colorado. The elevation of Sports Authority Field at Mile High is 275 ft higher than seven times the elevation of Lucas Oil Stadium in Indianapolis, Indiana. What is the elevation of Lucas Oil Stadium?