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Investigation of Equations


Jim Wilson

The equations y = x - 2 and y = x - 5 will cross the x-axis at -2 and -5 respectively. They will have a slope of 1.

If the product of the two equations was taken we would get the same graph with one equation:

The equation is

Rewrite this equation by expanding

What would happen to the graph if the coefficient of y was changed in this equation?