Justin and his friend dan went to movie. if they each bought popcorn for $4.25 and soda for $2.25 what was their total bill after adding 5% sale tax

The total bill after adding the sale tax: $6.82

Step-by-step explanation:

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step-by-step explanation:

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.