Aswimming pool is 18 meters long 14 meters wide and 5 meters deep. before it can be filled with water, it needs to be coated with water resistant paint.
- how many square meters of paint are needed to cover the pool?
- if water resistant paint needed for the pool cost $7.50 per square meter, how much would it cost to paint the pool

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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.