GROWTH DEVELOPMENT CHILD
SUMMATIVE ASSESSMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Suppose y varies directly as x. Suppose also that y=34 when x=17. Find y when x=56.
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98
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112
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124
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136
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Explanation:
Detailed explanation-1: -The phrase “ y varies directly as x” or “ y is directly proportional to x” means that as x gets bigger, so does y, and as x gets smaller, so does y.
Detailed explanation-2: -(Some textbooks describe direct variation by saying “ y varies directly as x “, “ y varies proportionally as x “, or “ y is directly proportional to x . “) This means that as x increases, y increases and as x decreases, y decreases-and that the ratio between them always stays the same.
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