The profit earned by a hot dog stand is a linear function of the number of hot dogs sold. It costs the owner [tex]$\$[/tex] 48[tex]$ each morning for the day's supply of hot dogs, buns, and mustard, but he earns $[/tex]\[tex]$ 2$[/tex] profit for each hot dog sold.

Which equation represents [tex]$y$[/tex], the profit earned by the hot dog stand for [tex]$x$[/tex] hot dogs sold?

A. [tex]$y = 48x - 2$[/tex]
B. [tex]$y = 48x + 2$[/tex]
C. [tex]$y = 2x - 48$[/tex]
D. [tex]$y = 2x + 48$[/tex]



Answer :

To determine the equation that represents the profit [tex]\( y \)[/tex] earned by a hot dog stand for selling [tex]\( x \)[/tex] hot dogs, we need to take into account two main factors:

1. The fixed cost the owner spends each morning for the day's supply.
2. The profit earned for each hot dog sold.

### Step-by-Step Solution:

1. Fixed Cost:
The owner spends \[tex]$48 each morning for the supplies. This can be considered a fixed cost, no matter how many hot dogs are sold. Therefore, this is a fixed deduction from the total revenue obtained. 2. Profit per Hot Dog: For each hot dog sold, the owner earns \$[/tex]2 in profit. If [tex]\( x \)[/tex] is the number of hot dogs sold, then the total profit earned from selling these hot dogs is [tex]\( 2x \)[/tex].

3. Total Profit Calculation:
The total profit [tex]\( y \)[/tex] is obtained by subtracting the fixed cost from the total revenue earned by selling the hot dogs.
[tex]\[ \text{Revenue from hot dogs} = 2x \][/tex]
[tex]\[ \text{Fixed cost} = 48 \][/tex]
The equation representing the profit:
[tex]\[ y = \text{Total Revenue} - \text{Fixed Cost} \][/tex]
Substituting the known values:
[tex]\[ y = 2x - 48 \][/tex]

Given these steps, the equation that correctly represents the profit [tex]\( y \)[/tex] for selling [tex]\( x \)[/tex] hot dogs is:

[tex]\[ y = 2x - 48 \][/tex]

Therefore, the correct answer among the given choices is:
[tex]\[ \boxed{y = 2x - 48} \][/tex]