Use the image to answer the question.

Question

Image: An illustration shows quadrant one of a coordinate plane where the x-axis and y-axis range from 0 to 6 in increments of 1. The y-axis is titled total cost in dollars and the x-axis is titled number of markers. A line is marked on the graph, passing through coordinates left parenthesis 0 comma 0 right parenthesis and left parenthesis 4 comma 3 right parenthesis.
What is the unit cost from the graph? (1 point)
$ ___ per marker

Answer 1

To find the unit cost per marker from the graph, we can look at the two points that are marked on the line: (0, 0) and (4, 3).

The coordinates represent the following:

• At (0, 0): If you buy 0 markers, the total cost is $0.
• At (4, 3): If you buy 4 markers, the total cost is $3.

To find the unit cost, we can calculate the cost per marker by dividing the total cost by the number of markers at the point (4, 3):

\[ \text{Unit Cost} = \frac{\text{Total Cost}}{\text{Number of Markers}} = \frac{3 \text{ dollars}}{4 \text{ markers}} = 0.75 \text{ dollars per marker} \]

Thus, the unit cost from the graph is \( \text{$0.75} \) per marker.