To make a positive profit p(x)>0 we need to make:

Now we solve this for x:

We have:
a = -2
b = 7
c = -3
We will use formula for quadratic equation:

We got two solutions. One is fraction other is whole number. We will not consider fraction because the amount of muffins sold must be whole number. So our solution is:
x>3
0.78 strikeouts per minute
Answer: (-1,-3
the formula for midpoint is
((x+x)/2 , (y+y)/2)
=(-3+1)/2 , (-1+-5)/2
=-2/2 , -6/2
=-1,-3
Or you could just look at the graph and see that -1,-3 is where the exact middle of the line is