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Shaun Inman · Answer 1 · 2020-07-27T14:33:41+0000

Direct variation is when
(y)/(x) is the same for each coordinate.

Indirect variation is when x · y is the same for each coordinate.

11. Answer: Direct Variation

Explanation:

$\begin {array}cx&12&18&23&29&34\\y&132&198&253&319&374\\\\(y)/(x)&(132)/(12)=11&(198)/(18)=11&(253)/(23)=11&(319)/(29)=11&(374)/(34)=11\\\end{array} \\\\\\\text{The coordinates x and y show a direct variation.}$

12. Answer: Indirect Variation

Explanation:

$\begin {array}cx&4&6&8&8.4&12\\y&21&14&10.5&10&7\\x\cdot y&4\cdot 21=84&6\cdot 14=84&8\cdot 10.5=84&8.4\cdot 10=84&12\cdot 7=84\\\end{array} \\\\\\\text{The coordinates x and y show an indirect variation.}$

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