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Class 10 > Learn Class IX-X Tuition > Meaning of direct variation?
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Meaning of direct variation?

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Bachelor of Engineering (B.E.) in Electronics & Communication

A direct variation is a situation in which two quantities -- such as hours and pay, or distance and time -- increase or decrease at the same rate. The ratio between the quantities is constant; that is, as one quantity doubles, the other quantity also doubles.
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A direct variation is a situation in which two quantities -- such as hours and pay, or distance and time -- increase or decrease at the same rate. The ratio between the quantities is constant; that is, as one quantity doubles, the other quantity also doubles.
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Don't want to over express myself, just join and feel the experience.

When two changing quantities have a constant ratio,it is called as direct variation.
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B.Tech, Spoken English, EEC, MATLAB, CET Coaching Tutor with 20 years of experience

A direct variation is a situation in which two quantities -- such as hours and pay, or distance and time -- increase or decrease at the same rate. The ratio between the quantities is constant; that is, as one quantity doubles, the other quantity also doubles.
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"Read , Recall and Procure"

A direct variation is a situation in which two quantities -- such as hours and pay, or distance and time -- increase or decrease at the same rate. The ratio between the quantities is constant; that is, as one quantity doubles, the other quantity also doubles.
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Software Professional Trainer with 26+ years of Experience in Software Design and Development

A relationship between two variables in which one is a constant multiple of the other. In particular, when one variable changes the other changes in proportion to the first. If b is directly proportional to a, the equation is of the form A = xB (where x is a constant)
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Counseling Psychologist, Special Educator in LD,.Educational Psychologist, School Counselor.

When two variables are related in such a way that the ratio of their values remains the same, the two variables are said to be in direct variation. i) y/x=k for some constant k. Here k is called the constant of proportionality. Example: If y varies directly as x, and y = 10 when x = 7, find the...
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When two variables are related in such a way that the ratio of their values remains the same, the two variables are said to be in direct variation. i) y/x=k for some constant k. Here k is called the constant of proportionality. Example: If y varies directly as x, and y = 10 when x = 7, find the constant of proportionality. Use y/x=k 10/7=k The constant of proportionality is 10/7 ii) y1/x1=y2/x2, this translation is used when the desired result is either an original or new value of x or y. If y varies directly as x, and y = 10 when x = 7, find y when x = 12. Use y1/x1=y2/x2 10/7=y/12 Apply the cross products rule. 120/7=y read less
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