Determine the constant of variation for the direct variation given. R varies directly with S. When S is 16, R is 80.
1/5
5
16

The constant of variation is k=5

Step-by-step explanation:

Proportions

A direct proportion is a relation between variables where their ratio is a constant value. This means that if y and x are proportional, then:

Where k is the constant of proportionality.

We know R varies directly with S. Their relationship is:

We also have when S=16, R=80. Thus:

Solving for k:

The constant of variation is k=5

step-by-step explanation:

∆abc has the points a(1, 7), b(-2, 2), and c(4, 2) as its vertices. formed with the point d(1, 2) as its third vertex, then ∆abd is triangle.

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step-by-step explanation:

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