A car mechanic tells a client that it will cost $120 for parts plus $50 per hour for labor to fix her car. Let x denote the number of hours of labor and let y denote the total cost to fix the car. Obtain the equation that expresses y in terms of x. Construct a table of values using the x-values 2, 3, and 5 hours. Draw the graph of the equation by plotting the points from the table and connecting them with a straight line. Use the graph to estimate visually the total cost of fixing the car if the number of hours of labor is 3.5. 
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