exam Maths Puzzle Numerical Ability

I am having problems with graphing. Can you help me solve and graph the following problem?

1. Plot the graph of the equations 2x-3y=6 and 2x-y=-10 and interperet the result.

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exam Other Question

Solve the following system of linear equations by graphing. Show your graph.

3x-y<2
x+y>2
in a bicycle race, lionel gives robert a 500m advantage. also, lionel agrees to start 15 min after robert. if lionel bikes at 17 km/h and robert at 14 km/h, how long will it take lionel after he starts to overtake robert?

thanks in advance