Gary buys a box of mechanical pencils, and a tube of 8 refill leads. Each pencil contains 3 leads. Gary puts the tube of refill leads into his pencil case, then adds one pencil at a time. What is the algebraic expression for the number of leads in the pencil case for any number of pencils?

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.

can someone answer this question plz

step-by-step explanation:

idk

step-by-step explanation: