Question

he 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 10 options:

Answer 1

Y = - 13 + 3x

1) the equation is a striaght line with y-intercept - 13 and slope 3

2) the horizontal axis is x, number of hours.

3) the vertical axis is y, temperature measured in °F

4) y-intercept = - 13=>: point (0, - 13)

5) x - intercept: y = 0 =>  x = 13/3 => point (13/3 , 0)

With all that information you can draw the graph easily.