Profit is the difference between revenue and cost. The revenue, in dollars, of a company that manufactures televisions can be modeled by the polynomial [tex]3x^2 + 180x[/tex]. The cost, in dollars, of producing the televisions can be modeled by [tex]3x^2 - 160x + 300[/tex]. The variable [tex]x[/tex] is the number of televisions sold.

If 150 televisions are sold, what is the profit?

A. [tex]$\$[/tex]2,700[tex]$

B. $[/tex]\[tex]$6,000$[/tex]

C. [tex]$\$[/tex]50,700[tex]$

D. $[/tex]\[tex]$51,300$[/tex]



Answer :

To find the profit when 150 televisions are sold, we need to calculate both the revenue and the cost for producing and selling these televisions, and then determine their difference.

### Step-by-Step Solution:

1. Identify the Revenue Function:
The revenue function is given by:
[tex]\[ R(x) = 3x^2 + 180x \][/tex]

2. Identify the Cost Function:
The cost function is given by:
[tex]\[ C(x) = 3x^2 - 160x + 300 \][/tex]

3. Calculate Revenue for 150 Televisions:
Substitute [tex]\( x = 150 \)[/tex] into the revenue function:
[tex]\[ R(150) = 3(150)^2 + 180(150) \][/tex]
Evaluating the expression:
[tex]\[ R(150) = 3(22500) + 27000 = 67500 + 27000 = 94500 \][/tex]
So, the revenue for selling 150 televisions is \[tex]$94,500. 4. Calculate Cost for 150 Televisions: Substitute \( x = 150 \) into the cost function: \[ C(150) = 3(150)^2 - 160(150) + 300 \] Evaluating the expression: \[ C(150) = 3(22500) - 24000 + 300 = 67500 - 24000 + 300 = 43800 \] So, the cost for producing 150 televisions is \$[/tex]43,800.

5. Calculate Profit:
Profit is the difference between revenue and cost:
[tex]\[ \text{Profit} = R(150) - C(150) = 94500 - 43800 = 50700 \][/tex]
Therefore, the profit for selling 150 televisions is \[tex]$50,700. ### Conclusion: The correct answer is: \[ \boxed{\$[/tex]50,700}
\]