Using the quadratic formula, we have:
, so our solutions are
and
.
Your x-intercept is at (-2,0) and your y intercept at (0,-3), so it's D
131 apples were sold on Saturday and Sunday.
Work:
Monday - Friday : 5 days
20 x 5 = 100 apples
Monday - Sunday: 7 days
33 x 7 = 231 apples
231 - 100 = 131
F(x)=x^2+x+5
then
F(3) would be the function evaluated at x=3, or 17.
anytime you see F(3) it is just whatever formula you are looking at evaluated when the variable is equal to 3.
Okay? Whats the point? If You're trying to find out how long it would take then you would have to make $500 so 45 more hours until you can get it.
