To determine the total cost for buying 10 markers of type A based on the given graph, we can analyze the solid line A.
The line A passes through the points (0, 0) and (3, 6). This tells us that if you buy 3 markers, the total cost is $6, which gives us a unit cost for type A markers.
To find the cost per marker for A:
- Total cost for 3 markers = $6.
- Cost per marker = Total cost / Number of markers = $6 / 3 = $2 per marker.
Now, to find the total cost for 10 markers of type A:
Total cost for 10 markers = Number of markers * Cost per marker = 10 * $2 = $20.
Therefore, the total cost for buying 10 of type A markers would be $20.00.