Question

write the condition for direct proportion.​

Answer 1

Answer:

For example, x and y are two quantities or variables which are linked with each other directly, then we can say x ∝ y. When we remove the proportionality symbol, the ratio of x and y becomes equal to a constant, such as x/y = C, where C is a constant.

Answer 2

Answer:

= k or x = ky. [y1,y2 are values of y corresponding to the values x1, x2 of x respectively]. The consumption of petrol and the distance travelled by a car is a case of direct proportion. Similarly, the total amount spent and the number of articles purchased is also an example of direct proportion.

Step-by-step explanation:

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