book Maths Puzzle Numerical Ability

write the equasion, in slope intercept form, of the line that passes through the point (-7,3) and is perpendicular to the line y=3x-5

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Hi, I am having trouble with the following homework question:

Generate a table and a graph for y=5x-2.

Thank you for your help!
Solve each system of equations graphically.

a) x+y=2
x=2y+2

b) y-x=1
2x-y=1

c)-3x+y=10
-x+y=-2