If you were to solve the following system by substitution what would be the best variable to solve for and from what equation 2x+6y=9 and 3x-12y=15

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Graph g(x)=2cosx . use 3.14 for π . use the sine tool to graph the function. graph the function by plotting two points. the first point must be on the midline and closest to the origin. the second point must be a maximum or minimum value on the graph closest to the first point.

Write an equation for the function that includes the points (2,100)and (3,100)