Problem 49
(a) clear the fractions, and rewrite the equation in slope-intercept form. (b) identify the slope. (c) identify the \(y\)-intercept. Write the ordered pair, not just the \(y\)-coordinate. (d) find the \(x\)-intercept. Write the ordered pair, not just the \(x\)-coordinate. $$ y+3=\frac{4}{9}(x-10) $$
Problem 58
(a) find the y-intercept. (b) find the x-intercept. (c) find a third solution of the equation. (d) graph the equation. \(30 x+y=600\)
Problem 62
If \(f(x)=8 x-9\), evaluate \(f\left(\frac{3}{5}\right)\).
Problem 64
(a) find the y-intercept. (b) find the x-intercept. (c) find a third solution of the equation. (d) graph the equation. \(3 x+2 y=4\)
Problem 72
(a) write the equation of the horizontal line that passes through the point. (b) graph the horizontal line. (c) write the equation of the vertical line that passes through the point. (d) graph the vertical line. \((9,2)\)
Problem 72
(a) find three solutions of the equation. (b) graph the equation. \(y=-x\)
Problem 74
Line \(A\) passes through \((4,10)\) and \((6,14)\). a. Find the slope of line \(A\). b. Line \(B\) is perpendicular to line \(A\). Identify the slope of line \(B\). c. Line \(B\) passes through the point \((-1,5)\). Write the equation of line \(B\) in slope-intercept form.
Problem 74
(a) find three solutions of the equation. (b) graph the equation. \(y=\frac{2}{3} x-4\)
Problem 74
(a) write the equation of the horizontal line that passes through the point. (b) graph the horizontal line. (c) write the equation of the vertical line that passes through the point. (d) graph the vertical line. \((-3,-8)\)
Problem 75
(a) complete the table of solutions. (b) graph the equation. $$ \begin{aligned} &y=\left(\frac{\$ 2}{1 \mathrm{ft}}\right) x+\$ 10\\\ &\begin{array}{|c|c|} \hline \boldsymbol{x}(\mathbf{f t}) & \boldsymbol{y}(\mathbb{\$}) \\ \hline 0 & \\ \hline 5 & \\ \hline 10 & \\ \hline \end{array} \end{aligned} $$