Tina lost 3 pounds on the first week of her diet she gained 1 pound on the second week then lost 2 pounds a week during every week after she has been dieting for a total of 13 weeks how many pounds has she lost

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph