proppregeo proppregeo

13-12-2018
Mathematics

contestada

Which of the following equations is direct variation? Y=2x,y=x+2,y=2,y=-2x-1

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SonOfZeus SonOfZeus

13-12-2018

Answer:

y=2x

Step-by-step explanation:

Direct variation is such that y=kx where k is the rate of change. In direct variation the graph must cross the origin (0,0) meaning that the y-intercept is zero. The only equation that satisfies the definition of direct variation is y=2x.

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