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A [directly] proportional relationship between two variables, X and Y implies thatY = cX where c is the constant of proportionality.

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Elijah Martinez

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A [directly] proportional relationship between two variables, X and Y implies thatY = cX where c is the constant of proportionality.

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Q: What is a proportional relationship between 2 quantities?
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What is the relationship between area of a circle and its radius squared for a series of circles with large increasingly large radii?

The area of a circle is directly proportional to the square of its radius. If two circles have radii R1 and R2 , then the ratio of their areas is ( R1/R2 )2


What is the relationship between perimeters and areas of similar figures?

Whatever the ratio of perimeters of the similar figures, the areas will be in the ratios squared. Examples: * if the figures have perimeters in a ratio of 1:2, their areas will have a ratio of 1²:2² = 1:4. * If the figures have perimeters in a ratio of 2:3, their areas will have a ratio of 2²:3² = 4:9.


Which Best describes the relationship between (x plus 1) and the polynomial x2 - x - 2?

No it’s not a factor


What is an algebraic or numerical sentence that shows that 2 quantities are equal is a?

It is an identity.


How is the perimeter and area of a square related?

There is no direct relationship. The perimeter is proportional to the length of the side (if you increase the side by a factor of 10, the perimeter will also increase by a factor of 10); the area is proportional to the square of the side length (if you increase the length of a side by a factor of 10, the area will increase by a factor of 100).If you know the perimeter, divide it by 4 and then square the result, to get the area (A = (P/4)2); if you know the area, take the square root and then multiply by 4 to get the perimeter (P = root(A) x 4).There is no direct relationship. The perimeter is proportional to the length of the side (if you increase the side by a factor of 10, the perimeter will also increase by a factor of 10); the area is proportional to the square of the side length (if you increase the length of a side by a factor of 10, the area will increase by a factor of 100).If you know the perimeter, divide it by 4 and then square the result, to get the area (A = (P/4)2); if you know the area, take the square root and then multiply by 4 to get the perimeter (P = root(A) x 4).There is no direct relationship. The perimeter is proportional to the length of the side (if you increase the side by a factor of 10, the perimeter will also increase by a factor of 10); the area is proportional to the square of the side length (if you increase the length of a side by a factor of 10, the area will increase by a factor of 100).If you know the perimeter, divide it by 4 and then square the result, to get the area (A = (P/4)2); if you know the area, take the square root and then multiply by 4 to get the perimeter (P = root(A) x 4).There is no direct relationship. The perimeter is proportional to the length of the side (if you increase the side by a factor of 10, the perimeter will also increase by a factor of 10); the area is proportional to the square of the side length (if you increase the length of a side by a factor of 10, the area will increase by a factor of 100).If you know the perimeter, divide it by 4 and then square the result, to get the area (A = (P/4)2); if you know the area, take the square root and then multiply by 4 to get the perimeter (P = root(A) x 4).

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When are 2 quantities proportional when it comes to a table or graph?

1) It has to go through the origin (0,0). 2) It has to be consistent.


What is the relationship between thrust and pressure?

thrust and pressure are dirrectly proportional 2 each other frm d formula pressure =perpendicular force /area


What the relationship between mass and the amount of gravity that pulls 2 object together?

The gravity is proportional to both masses involved, and inversely proportional to the square of the distance.The gravity is proportional to both masses involved, and inversely proportional to the square of the distance.The gravity is proportional to both masses involved, and inversely proportional to the square of the distance.The gravity is proportional to both masses involved, and inversely proportional to the square of the distance.


What is the difference between direct proportonal and proportional?

I would let "direct" mean "linear." The answer then becomes simpler; direct proportional may mean a relationship like 1-1, 2-2, 3-3, etcetera. Proportional by itself would then be free to indicate other proportions; like 1-1, 2-4, 3-9, etcetera -- in an exponential proportion.


What makes two quantities porportional?

They are proportional if a change in one of the quantities always and necessarily results in a proportional change in the other.So if you think of a simple equation, x = 2y then the quantities are proportional. If you double y then x is necessarily also doubled. If you triple y then x is also tripled. If you halve y then x is halved and so forth.However x = 2y + 1 is non proportional. This is because if, for example, you double y then x is increased but it is not exactly doubled and so the change is not in proportion. For example, in this equation, when y = 2 then x = 5. When y = 4 then x = 9. 9 is not the double of 5.


What 2 variables effect gravity?

The gravitational force between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.


What is the relationship between the distance of a planet from the sun and the length of its years?

Time = distance3/2Kepler's 3rd Law of Planetary Motion gives this relationship:The cube of the average distance from the Sun is proportional to the square ofthe period of revolution (year).So: (Distance)3 is proportional to (year)2


What is a ratio between 2 different quantities?

A ratio between two (usually) different quantities is the rate. Usually used to describe something compared to a quantity of time.


Difference between a proportional solenoid and a conventional on off solenoid?

1.) in conventional solenoid , the force is not costant...wheras in proportional .it is. 2.) proportional valve fills the gap between conventional and servo valves 3.) proportional valve can take infinite spool positions 4.)proportional valve cannot take high degree if valve performance


What is the relation between the quantities involved of 4 and -2?

6