The table shows the outputs y for different inputs x:

input
(x): 3 7 11 15
output
(y): 4 6 8 10

part a: does the data in this table represent a function? justify your answer. (3 points)
part b: compare the data in the table with the relation f(x) = 5x – 21. which relation has a greater value when x = 11? (2 points)
part c: using the relation in part b, what is the value of x if f(x) = 99? (5 points)

answer: slight chance that it will happen

step-by-step explanation:

$8

step-by-step explanation:

it is pretty much backwards.

you take the 4x2 multiply that, and that is = $8

d. $180

step-by-step explanation:

if the dimensions of the room is 9ft by 12 ft, we have the area of the floor as,

so the area of the floor is 108 square feet, converting that into square yards we get,

the cost of carpet is $15 per square yard, therefore the cost of carpet for 12 square yards is,

hence, the cost of carpet is $180.

assuming the dimensions of the room be,

15 ft by 12 ft

so, the area of the floor of that room is,

we can convert 180 square feet into square yards, we know that,

1 sq ft = 0.111 sq yard

so, 180 square feet is,

so the area of floor is 20 square yards.

now, the cost of carpet is 15 dollars per square yard, therefore the cost of carpet for 20 square yards is,

so, it will cost $300.