2nd Quarter : PreTest in Mathematics 10
Quiz by Ma. Carmela D. Laudit
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Which is an example of direct variation?29
𝑦 = 2𝑥
𝑥𝑦 = 2
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Which is an example of direct variation?
𝑦 = 2𝑥
𝑥𝑦 = 2
Which is an example of inverse variation?
𝑥 = −4𝑦
𝑦 = 4𝑥
The length 𝑙 of a rectangular field varies inversely as its width 𝑤 is written as ____.
𝑙 = 𝑘𝑤
𝑤 = 𝑘𝑙
If 𝑦 varies inversely as 𝑥 and 𝑦 = 12 when 𝑥 = 4, find 𝑦 when 𝑥 = 3.
What mathematical equation describes the graph below?
𝑦 varies directly as 𝑥, where 12 is the constant of variation
𝑦 varies inversely as 𝑥, where 2 is the constant of variation
𝑦 varies inversely as 𝑥, where 12 is the constant of variation
𝑦 varies directly as 𝑥, where 2 is the constant of variation30s
Which equation represents “y varies directly as x and z”?
𝑦 = 𝑘𝑥𝑧
𝑦 = 𝑥𝑧
It is defined as the variation where a quantity depends on two or more other quantities, whereas one quantity varies directly while the other quantity varies inversely.
“The Interest earned by a savings account of Mr. Viray is jointly proportional to the Time and its Principal amount. After one quarter (3months), the interest for a principal amount of Php 6,000 is Php 120.” How much interest is earned within 5 months if the principal amount is Php 7,500?
In the expression 3𝑥², 2 is called _____.
Which of the following is TRUE?
𝑎0𝑏2 = 𝑎𝑏0
𝑥6 ∙ 𝑥3 = 𝑥920s
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