Question

Luke is building a storage building and needs to have a slab of concrete poured. He knows the contractor charges an initial cost of $95 plus an additional $3.50 per square foot of concrete. Which function can be used to determine the cost, in dollars, to pour a concrete slab with an area of x square feet? A) f(x) = 3.5x + 95 B) f(x) = 9.5x + 3.5 C) f(x) = 95x + 3.5 D) f(x) = 98.5x

Answer 1

The answer is A.

 y is the total cost, than you would need to multiply x, the number additional number of square feet, which is 3.5x. you would then add 95 dollars to the equation to represent the initial fee. So the equation would look like Y=3.5x+95.

- beanz

Answer 2

$3.50 each Square foot +$95
$3.5 times x+$95