On a very cold morning, it was -7°f. as the day went on, the temperature rose 3 degrees each hour. which equation shows the temperature over time?

Step-by-step explanation:

Let x be the number of hours after morning.

We have been given that on a very cold morning, it was -7°F. As the day went on, the temperature rose 3 degrees each hour.

Since the slope-intercept form of an equation is: , where m represents slope and b represents y-intercept.

As the temperature is increasing 3 degrees with each passing hour, so slope of our line will be 3 as slope represents rate of change.

The initial temperature was -7°F, so -7 will be our y-intercept.

Upon substituting m=3 and b=-7 in slope intercept form of equation we will get,

Therefore, the equation shows the temperature over time.

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.

the reporter's right

step-by-step explanation:

1/4 = .25 / 25%