exam Maths Puzzle Numerical Ability

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8a^2-18ay+7y^2

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exam Other Question

Directions: on a coordinate system on a graph, graph each system of equations on the same set of axes. name the point of intersection. My two equations are y=3x+1 and y=x-1. How do i graph them and where do i name the point of intersection? Graph each function for the primary wave. Label the coordinates of each point graphed. a) y=-2sin(3x-(pie/2))+1
b) y=20+7cos((3pie/4x)+(3pie/4))