The temperature on a particular day started at –13°F. It rose steadily by 3° each hour. The function y = –13 + 3x models the temperature, where x is the number of hours and y is the temperature. Graph the equation.

Question

callisto · Answer

First, complete the table using the equation y = -13 + 3x
x |  0  |  1  |  2  |  3  | 
y  |     |      |      |      |
Next, plot the points on a graph with marked scale on x- and y-axes.
After that, draw a line joining the points together.
Then, write the equation next to the line.