Question

plz help

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.

Answer 1

y = –13 + 3x

is the same as

y = 3x - 13

Answer 2

the second equation is in the form y = mx + b where

m = 3 (slope)

b = -13 (y-intercept)

Answer 3

the y-intercept is -13, which means we know the point (0, -13) is on the graph

Answer 4

the slope is 3 or 3/1

so this tells us to go up 3 units

then go to the right one unit

to land at the point (1, -10)

Answer 5

So we have these two points now

(0, -13) and (1, -10)

Plot them and draw a straight line through them

Answer 6

omg thanks so much

Answer 7

you're welcome