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8. the abc t - shirt company sells t - shirts for $15 each. the graph b…

Question

  1. the abc t - shirt company sells t - shirts for $15 each. the graph below shows their profit for up to 10 t - shirts. what does it cost the company to manufacture one t - shirt? graph: x - axis: number of t - shirts (0 - 10), y - axis: profit ($) (0,15,30,45,60,75,90,105,120,135). points (4,48) and (7,84) on the line starting from (0,0).

Explanation:

Step1: Encontrar la pendiente (profit por camiseta)

La pendiente \( m \) se calcula con \( m = \frac{y_2 - y_1}{x_2 - x_1} \). Usando los puntos \( (4, 48) \) y \( (7, 84) \):
\( m = \frac{84 - 48}{7 - 4} = \frac{36}{3} = 12 \). Así, la ganancia por camiseta es $12.

Step2: Calcular el costo por camiseta

Precio de venta por camiseta: $15.
Costo = Precio de venta - Ganancia.
\( \text{Costo} = 15 - 12 = 3 \).

Answer:

El costo de fabricar una camiseta es \$3.