Explanation:
a) Just plot the value of q = 10 in the function to get the answer
which gives 160 and for plotting on graph a horizontal line at 160 Y value
b) any cost below 160 will be the variable cost till the x value of 0
so basically 160>cost>100
c) the total cost is the area under the whole graph till 10 units of output
which gives 1283.333
d)1283.333/10 is the average cost
for graph show a) as one horizontal line
b) as the value two dots on the graph or inequality
c) is the integral shade the region under the graph
d) is one more horizontal line at 128.3