4. Sasha sells t-shirts. Each day she earns a set amount, plus a commission. Write a linear function fto determine Sasha's pay.

T-shirts 1 2 3 4 5
Total Pay 68 71 74 77 80

The linear function is: p(x) = 3x+65The linear function is: p(x) = 3x+65

Step-by-step explanation:

Let x be the number of t-shirts and y be the total pay

As we can clearly see in the table that there is a linear relationship between x and y

A linear function is given as:

Here m is the gradient of the function then

Taking any two pairs of x and y

(1,68) and (2,71)

Putting in equation

Putting a pair (1,68) in the equation to find the value of b

Putting the value of b

Let p(x) be the linear function

Hence,

The linear function is: p(x) = 3x+65

y=mx+b

step-by-step explanation:

m slope

b y-intercept