I will give the BRAINIEST Six friends all use $ 2-off coupons to buy themselves movie tickets. They spend a total of $42. What is the price of one movie ticket without the coupon?
$11
$7
$9
$5

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

one set of data has more variation than the other. hope this !