Consider this function.

f(x) = 6x2 − 11x − 10.

what are the zeros of the function? a) x = 5/2 and x = − 2/3 b) x = − 5/2 and x = 2/3 c) x = 2/5 and x = − 2/3 d) x = − 2/5 and x = 3/2

A) and  

Step-by-step explanation:

Make the quadratic function equal to zero:

Having the form , the zeros can be calculated with a formula called "Quadratic formula":

Then:

Identify a, b and c:

Finally, substitute them into  the Quadratic formula:

answer: she must produce at least 9,000 windows in order to make a profit of $48,000

explanation:

48,000 - 12,000 = 36,000

36,000/4 = 9,000