Question

The graph shows the cost, in dollars, for printing T-shirts at the T-Shirt Shoppe.

Y. The T-Shirt Shop, Cost (dollars). X. Number of T-Shirts.

Which linear equation can be used to represent the cost, y, for printing x T-shirts?

A
y = 5x + 50
B
y = x + 50
C
y = 10x + 50
D
y = 50x + 5

Answer 1

A. y = 5x + 50

Reason: the y-intercept is 50 (cost when x = 0), and the cost rises by $5 for each additional T‑shirt (slope = 5), so y = 5x + 50.