The function p, where p(x) =−x2+14x−40, models the profit from Lindsey's store, in thousands of dollars, after x months of opening the store. Based on the function, when did Lindsey's store have a profit of zero dollars? When did the store have its maximum profit, and what was the profit?

Iwish i knew the answer but i don’t but someone will come and us

I’m pretty sure the slope would be 1 since the x and y values increase by 1

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.