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Q: How can you if a relationship is proportional by looking at an equation?

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If each side of the equation is a fraction, then it is a proportion.

If it passes through the origin

Directly proportional relationship is F=ma, F is directly proportional to a. Inversely proportional relationship is v=r/t, v is inversely proportional to t.

It is a straight line equation in the form of: y = mx+b whereas 'm' is the slope and 'b' is the y intercept

Directly proportional. From rearrangement of the equation D=M/V i.e. Volume by Density = Mass

Related questions

You cannot represent a proportional relationship using an equation.

If each side of the equation is a fraction, then it is a proportion.

If it passes through the origin

If you mean: y=7x -3 then it is a proportional relationship of a straight line equation.

The graph of a linear proportion will be a straight line passing through the origin. The equation will have the form y = mx, also written as y = kx.

For each of the following relationships, graph the proportional relationship between the two quantities, write the equation representing the relationship, and describe how the unit rate, or slope is represented on the graph.

Proportional is when it is proportional.

Directly proportional relationship is F=ma, F is directly proportional to a. Inversely proportional relationship is v=r/t, v is inversely proportional to t.

It is a straight line equation in the form of: y = mx+b whereas 'm' is the slope and 'b' is the y intercept

no a proportional relationship is y / x = 5

how are nonvascular plants important to the environment

Directly proportional. From rearrangement of the equation D=M/V i.e. Volume by Density = Mass