Are the expressions equivalent 7y + 21 and 3(2y+7)+y

Yes

Step-by-step explanation:

3(2y + 7) + y

6y + 21 + y

7y + 21

what do you mean by fog

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.