The gas tank in ms. wades car holds 20gallons. she has 5 gallons of gas remaining in the tank. if she purchases gas fpr $2.90 per gallon, how much will she pay to fill the tank?
think, 10 gallons would

5 gallons would

so,15 gallons would

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.