The function
The function can from , where a = 2.5.
It is a direct variation function.
The graph passes through the origin and slope is 2.5.
The function is a direct variation function.
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, where a = 2.5.![\"graph](\"/userfiles/image/Library/Algebra%202/graph%20of%20the%20function%20y=%202_5x.gif\")
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is a direct variation function.