Mr. randall bought 4 shirts, which were on sale. the shirts were originally priced $20 the sales price of the shirts was $5 less than the original price write and find the value of an expression for the total amount that mr. randall paid for the shirts.

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step-by-step explanation:

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is