Solve the linear programming problem. Maximize C = -3x +5y subject to:

x - y greater than or equal to -3

2x + y less than or equal to 12

x greater than or equal to 0

y greater than or equal to 0

For the x intercept i got (6,0) and the y i got (0,3) the point of interception of the 2 equations x-y=-3 and 2x+y=12 i got (3,6)

can someone show me where to go from here?

what does the maximize C = -3x + 5y even mean?