Chapter 7: Problem 53
What is a half-plane?
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Chapter 7: Problem 53
What is a half-plane?
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In Exercises 9-14, a. Determine if the parabola whose equation is given opens upward or downward. b. Find the vertex. c. Find the \(x\)-intercepts. d. Find the \(y\)-intercept. e. Use (a)-(d) to graph the quadratic function. \(y=x^{2}+8 x+7\)
Make Sense? Determine whether each statement makes sense or does not make sense, and explain your reasoning. When graphing \(3 x-4 y<12\), it's not necessary for me to graph the linear equation \(3 x-4 y=12\) because the inequality contains a \(<\) symbol, in which equality is not included.
Graph each linear inequality. \(3 x+y \leq 3\)
Write each sentence as an inequality in two variables. Then graph the inequality. The \(y\)-variable is at least 2 more than the product of \(-3\) and the \(x\)-variable.
Graph the solution set of each system of inequalities. \(\left\\{\begin{array}{r}x+y<4 \\ 4 x-2 y<6\end{array}\right.\)
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