Which of the following statements demonstrates unit rate?
a. tony bought stationery goods worth $6.90
b. rita drives a car at 50 mph.
c. jennifer types faster than kyle in one minute.
d. the school has 90 children for every 3 buses.

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.

4400

step-by-step explanation: