exam Maths Puzzle Numerical Ability

Please help. Im lost on this problem.
1. Graph the following equations.
A. y = 4/5(x) - 7
Graph: B. -3y + 12x = 18

Graph:

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exam Other Question

Write the equation of the line through [-17/3, 8/5] that is parallel to the x-axis.
* -17/3x+8/5y=0
* y=-17/3x+8/5
* x=-17/3
* y=8/5
sqrt(8)