exam Maths Puzzle Numerical Ability

Graph the following equation.

y=1/3x+1

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exam Other Question

Use Cramer's rule to solve the following system of equations. If D=0, use another method to solve.
2x/3-5y/2=3/2
-x/4+5y/2=7/2 I need help understanding this, Please help. P Varies Directly as R and inversly as the square of S. If P = 175 and R = 252, and S = 6, Find P When R = 196 and S = 7