91Ó°ÊÓ

For Exercises \(1-12,\) determine whether the ordered pair is a solution for the equation. $$(9,0) ; y=-2 x+18$$

Plot and label the point described by each ordered pair of coordinates. $$(-1,0),(2,1),(-3,-3),(5,-2)$$

For Exercises \(1-12,\) determine whether the ordered pair is a solution for the equation. $$(0,-1) ; y=2 x+1$$

Use the given linear equation to answer the questions. The equation \(b=17.5 t+500\) describes the final balance of an account \(t\) years after the initial investment is made. a. Find the initial balance (principal). (Hint: \(t=0 .)\) b. Find the balance after 5 years. c. Find the balance after 20 years. d. Graph the equation with \(t\) on the horizontal axis and \(b\) on the vertical axis.

The equation \(F=\frac{9}{5} C+32\) is used to convert a temperature in \(^{\circ} \mathrm{C}\) to temperature in \(^{\circ} \mathrm{F}\). a. What is the \(F\) -intercept? b. What is the C-intercept? c. Convert \(40^{\circ} \mathrm{C}\) to \(^{\circ} \mathrm{F}\). d. Graph the equation with \(C\) on the horizontal axis and \(F\) on the vertical axis.

Plot and label the point described by each ordered pair of coordinates. $$(-4,0),(1,-4),(-3,-5),(4,4)$$

Plot and label the point described by each ordered pair of coordinates. $$(-2,-4),(0,-3),(5,-3),(-4,2)$$

Use the given linear equation to answer the questions. The equation \(C=\frac{5}{9}(F-32)\) is used to convert a temperature in \(^{\circ} \mathrm{F}\) to temperature in \(^{\circ} \mathrm{C}.\) a. What is the \(F\) -intercept? b. What is the C-intercept? c. Convert \(68^{\circ} \mathrm{F}\) to \(^{\circ} \mathrm{C}\). d. Graph the equation with \(F\) on the horizontal axis and C on the vertical axis.

For Exercises \(1-12,\) determine whether the ordered pair is a solution for the equation. $$(0,0) ; y=\frac{2}{5} x$$

For Exercises \(1-12,\) determine whether the ordered pair is a solution for the equation. $$\left(-1 \frac{2}{5}, 0\right) ; y-3 x=5$$