Problem 58
Determine whether each statement "makes sense" or "does not make sense" and explain your reasoning. By looking at a linear inequality in two variables, I can immediately determine whether the boundary line of its graph should be solid or dashed.
Problem 60
Graph equation. \(5 y=20\)
Problem 78
What is an \(x\)-intercept of a graph?
Problem 81
14 is \(25 \%\) of what number?
Problem 82
write each sentence as a linear equation in two variables. Then graph the equation. The \(y\) -variable exceeds the \(x\) -variable by 4
Problem 83
write each sentence as a linear equation in two variables. Then graph the equation. The \(y\) -variable exceeds twice the \(x\) -variable by 5
Problem 84
How many points are needed to graph a line? How many should actually be used? Explain.
Problem 84
Solve for \(y\) and put the equation in slope-intercept form. $$y-30.0=0.265(x-10)$$
Problem 91
Find the coefficients that must be placed in each shaded area so that the equation's graph will be a line with the specified intercepts. \(\square x+\square y=10 ; x\) -intercept \(=5 ; y\) -intercept \(=2\)
Problem 99
Simplify: \(\quad 7 x-(3 x-5)\)