Question

straight line graph indicates a​

Answer 1

straight line graph shows uniform motion ..

but if it is parallel to the principle axis then it means that the object is in rest

Answer 2

Straight line graph signifies that the changes in the values of the quantities represented on the graph are proportional to each other, e.g., in simple pendulum, the straight line graph means l is proportional to T2, or l/T2 is constant. Slope of the straight line gives the value of the constant of proportionality.

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