Chapter 4: Problem 40
Graph the line that has the given intercepts. \(x\) -intercept: \(-7\) \(y\) -intercept: 15
Chapter 4: Problem 40
Graph the line that has the given intercepts. \(x\) -intercept: \(-7\) \(y\) -intercept: 15
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Get started for freeThe U.S. Bureau of Labor Statistics projects job growth by using three models to make low, moderate, and high estimates. The equations below model the projected number of auto mechanics \(m\) from 1994 to \(2005.\) In all three models, \(t\) is the number of years since 1994 Model 1: m=13,272 t+736,000\( Model 2: m=9455 t+736,000\) Model 3: m=11,455 t+736,000\( a. For each model, write an equation that enables you to predict the year in which the number of auto mechanics will reach \)800,000\(. b. In the same coordinate plane, graph the related function for each equation that you found in part (a). According to each model, in what year will the number of auto mechanics reach \)800,000 ?$ c. Visual THINKING Which model gives a high estimate of the number of mechanics? a low estimate? How can you tell this from the graphs of the models?
Find the slope of the graph of the linear function \(f\). $$ f(-1)=2, f(3)=2 $$
Find the slope of the graph of the linear function \(f\). $$ f(2)=2, f(3)=3 $$
Evaluate the expression for the given value of the variable. (Review 1.3 and 2.5 for 4.2 ) $$4.2 t+17.9 \text { when } t=3$$
Find the sum or the difference of the matrices. $$ \left[\begin{array}{rr}4 & -8 \\\7 & 0\end{array}\right]-\left[\begin{array}{rr}-5 & 3 \\\\-5 & -7\end{array}\right] $$
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