Acomputer repair technician charges $50 to make a house call plus $75 for each hour spent fixing a computer. this relationship is represented by the equation y=75x+50. what does the graph of this equation represent? there may be more than one correct answer. a. the set of all ordered pairs (x, y) that are solutions to the equation b. the amount of time spent fixing a computer c. the cost of fixing a computer in x amount of time. d. the number of computers that the technician fixed