For Exercise, refer to Figure 4(c), which shows a graph of the equation . The equation rel...

For Exercise, refer to Figure 4(c), which shows a graph of the equation . The equation relates temperature C on the Celsius scale to temperature F on the Fahrenheit scale. [In Figure 4(c), C is the variable for the horizontal axis and F is the variable for the vertical axis.]

GRAPHICAL PERSPECTIVE

(c) An appropriate viewing rectangle. The essential features of the graph are clear.

Figure 4(c)

Finding an appropriate viewing rectangle for (or )

(a) Use Figure 4(c) to estimate (to the nearest 10 degrees) the temperature on the Fahrenheit scale corresponding to 0 degrees on the Celsius scale. When you do this, which intercept are you looking at, the C-intercept or the F-intercept?

(b) Use the equation to give the exact temperature on the Fahrenheit scale corresponding to 0 degrees on the Celsius scale.