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olga nikolaevna [1]
3 years ago
14

Identify the variation as direct, inverse, joint or combined.

Mathematics
2 answers:
BartSMP [9]3 years ago
6 0

Answer:

The statements " cost of the number of the same articles purchased varying with the number purchased' shows direct variation .

Option (a) is correct .

Step-by-step explanation:

Definition of the direct variation

When two variables that can be expressed by an equation in which one variable is equal to a constant times the other.

i.e

x \propto y

x = ky

As the x increases than y is also increase .

As given the statement in the question

The cost of the number of the same articles purchased varying with the number purchased.

i.e

As the number of purchased article increases thus cost of the articles also increases .

Therefore the statements " cost of the number of the same articles purchased varying with the number purchased' shows direct variation .

Option (a) is correct .

Inessa [10]3 years ago
3 0
<span>a. direct variation
A relationship between two variables in which one is a constant multiple of the other. </span>
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