SOLUTION: Determine whether y varies directly as x, if yes find the variation
y=-1.2x
y-3x=1
y+2=x
y=-3.5x+7
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Question 904785: Determine whether y varies directly as x, if yes find the variation
y=-1.2x
y-3x=1
y+2=x
y=-3.5x+7
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
y=-1.2x is a direct variation equation since it is in the form y = kx. In this case, k = -1.2 (the constant of variation)
The other equations are NOT in the form y = k*x and cannot be written into that form. So they are NOT direct variation equations.
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