Question

Which is not true about direct proportion

Answer 1

In the graph of a direct proportion, its graph shows a straight line graph or a linear graph that go through the origin. So that makes options A and options D correct. It's slope is also constant so therefore option C is correct, leaving us option B as the statement that is not true about direct proportion. Hope this answers your question.

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Answer 2

Complete question :

Which is NOT true about a direct proportion?

a. Its graph must be linear

b. Its graph must have a slope of 0

c. Its graph must have a constant slope

d. Its graph must go through the origin

Answer:

Option - B is not true.

Step-by-step explanation:

• Direct proportionality or direct variation is the ratio of two quantities where the ratio is equal to a constant value.
• It is represented by the proportional symbol ∝.
• In fact, the same symbols are used to represent inverse proportions, and the different sizes are inverted here.
• In a direct proportional graph, the graph shows a straight line or linear graph through the origin.
• So options A and D are correct. Since the slope is also constant, option C is correct, leaving option B is not a statement of direct proportion.
• Slope of 0 shows that there is no slope.
• But in direct proportion there is a linear graph.
• So Option - B is false.

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