The pro t function, p(x), for a company is the cost function, c(x), subtracted from the revenue function, r(x). The pro t function for the Acme Corporation is p(x) = 0:5x 2 + 250x 300 and the revenue function is r(x) = 0:3x 2 + 150x. The cost function for the Acme Corporation is

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.