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It is an expression, not an equation and so cannot be proportional nor non-proportional.
if {
If each side of the equation is a fraction, then it is a proportion.
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If it passes through the origin
You cannot represent a proportional relationship using an equation.
It is an expression, not an equation and so cannot be proportional nor non-proportional.
if {
According to the equation [ y = 2x ], 'y' is directly proportional to 'x' .
Speed is directly proportional to energy in case of Einstein equation.
If each side of the equation is a fraction, then it is a proportion.
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Answer: ProportionalorDirectly Proportional
If it passes through the origin
You can use a plot diagram to plot the points and if they all go straight through the origin then it is proportional
If you mean: y=7x -3 then it is a proportional relationship of a straight line equation.
we can cross multiply the two equivalent equations and then find the fourth proportional