The needed equation representing the profit y is represented in the option B.
B. y = -x² + 50 x - 300
Explanation:
Here, the given options are incomplete.
A. y² = 4 x² - 100
B. y = -x² + 50 x - 300
C. x = -y² + 60 y - 400
D. x ² = - 6 y² + 200
The number of items sold by the company = x
The profit ( in thousands) is represented as = y
Now, here as we are looking for the equation representing profit (y)
So, we can disregard the equations which has terms (x) and ( x²) in left.
⇒The equations in the options C and D are eliminated.
Similarly, again we are looking for the equation for Profit , not (profit)².
So,we can disregard the equation which has terms (y²) in left side.
⇒The equation in the options A is eliminated.
Hence, the needed equation representing the profit y is represented in the option B.
B. y = -x² + 50 x - 300