Question

The function models the cost, in dollars, of a rug with width x feet. What is the cost of a rug that is 9 feet wide?

Answer 1

@pooja195

Answer 2

@jigglypuff314 @Michele_Laino

Answer 3

First lets plug 9 in as all the x's in the function. Here is what we have\[2.15(2*9^2-4*9-6)=?\] 9 squared is 81. Now we have\[2.15(2*81-4*9-6)=?\] Multiply 2*81 and then multiply 9*4 to get\[2.15(162-36-6)=?\] Simplify the terms inside the parenthesis to get \[2.15(120)=?\] Multiply 2.15 and 120 to get\[=258\]