The equation that represents the cost constraint in this situation is 11x + 6y = 200
Let x represent the number of adult tickets and y represent the number of children tickets.
An after-school program has a budget of $200, hence:
11x + 6y = 200
Plotting the graph using online geogebra graphing tool.
Find out more on equation at: https://brainly.com/question/2972832