− 2 3 y − 3 5 x 2 9 − 4 5 x 1 3 y Let x = 5 and y = 3. − 2 3 (3) − 3 5 (5) 2 9 − 4 5 (5) 1 3 (3) = −2 − 3 2 9 − 4 1 = −77 9 Use
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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
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