Question

A company has determined that its weekly profit is a function of the number of items that it sells. Which equation could

represent the weekly profit in thousands of dollars, y, when the company sells x items?

Oy? -4x2-100

O y-x50x-300

Ox--- 60y-400

07.-8.200

Answer 1

Answer: B

Explanation:

Answer 2

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