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What is the relationship in which the ratio of the manipulated variable and the responding variable is constant?

a. interdependent
b. slope
c. direct proportion
d. inverse proportion

User MrDank
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1 Answer

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This is Direct Proportion. If, for instance, the number of teachers in a school increased by one for every 30 students, the two (number of students and number of teachers) would exist in a directly proportional relationship.
User Chris Maurer
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