Question

Inverse variations
Direct variation
Formulas

Answer 1

Answer:

INVERSE VARIATION:-

For example, if y varies inversely as x, and x = 5 when y = 2, then the constant of variation is k = xy = 5(2) = 10. Thus, the equation describing this inverse variation is xy = 10 or y = . Example 1: If y varies inversely as x, and y = 6 when x = , write an equation describing this inverse variation.

DIRECT VARIATION:-

Since k is constant (the same for every point), we can find k when given any point by dividing the y-coordinate by the x-coordinate. For example, if y varies directly as x, and y = 6 when x = 2, the constant of variation is k = = 3. Thus, the equation describing this direct variation is y = 3x.

Step-by-step explanation:

It's your answer.

Answer 2

DIRECT VARIATION:-

x1  = y1

x2    y2

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