Harper is deciding between two different movie streaming sites to subscribe to. Plan A costs $18 per month plus $2 per movie watched. Plan B costs $22 per month plus $1 per movie watched. Let A represent the monthly cost of Plan A if Harper watches x per month and let B represent the monthly cost of plan B if Harper watches x movies per month. Graph the function and determine the number of monthly movies watched, x, that would make the two plans have an equal monthly cost.