Chapter 7: Problem 20
Graph each linear inequality. \(y>-2\)
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Chapter 7: Problem 20
Graph each linear inequality. \(y>-2\)
These are the key concepts you need to understand to accurately answer the question.
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Graph the solution set of each system of inequalities. \(\left\\{\begin{array}{r}2 x-y<3 \\ x+y<6\end{array}\right.\)
Compare the graphs of \(3 x-2 y>6\) and \(3 x-2 y \leq 6\). Discuss similarities and differences between the graphs.
On June 24,1948 , the former Soviet Union blocked all land and water routes through East Germany to Berlin. A gigantic airlift was organized using American and British planes to bring food, clothing, and other supplies to the more than 2 million people in West Berlin. The cargo capacity was 30,000 cubic feet for an American plane and 20,000 cubic feet for a British plane. To break the Soviet blockade, the Western Allies had to maximize cargo capacity, but were subject to the following restrictions: \- No more than 44 planes could be used. \- The larger American planes required 16 personnel per flight, double that of the requirement for the British planes. The total number of personnel available could not exceed 512 . \- The cost of an American flight was \(\$ 9000\) and the cost of a British flight was \(\$ 5000\). Total weekly costs could not exceed \(\$ 300,000\). Find the number of American and British planes that were used to maximize cargo capacity.
Describe how to calculate the slope of a line passing through two points.
Evaluate \(f(x)\) for the given values of \(x\). Then use the ordered pairs \((x, f(x))\) from your table to graph the function. $$ \begin{aligned} &f(x)=x-1\\\ &\begin{array}{|r|l|} \hline {}{}{\boldsymbol{c}} & \boldsymbol{f}(\boldsymbol{x})=\boldsymbol{x}-1 \\\ \hline-2 & \\ \hline-1 & \\ \hline 0 & \\ \hline 1 & \\ \hline 2 & \\ \hline \end{array} \end{aligned} $$
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