A manufacturer measures the number of cell phones sold using the binomial 0.0150 + 2.81. She also measures the wholesale price on these phones using a binomial 0.011c + 3.52. Calculate her revenue if she sells 100,000 cell phones.​

The discriminant tells us how many real solutions there are. Since the parabola doesn't have any x-intercepts, the discriminant is less than zero, and therefore is answer A.

If a discriminant is:
>0, there are 2 x-intercepts
=0, there is 1 x-intercept
<0, there are no x-intercepts