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2nd Quarter : PreTest in Mathematics 10

Quiz by Ma. Carmela D. Laudit

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40 questions
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  • Q1

    Which is an example of direct variation?

    𝑥 = \frac{1}{2y}

    𝑦 = 2𝑥

    𝑥𝑦 = 2

    𝑦 =  \frac{2}{x}

    20s
  • Q2

    Which is an example of inverse variation?

    𝑦 = \frac{4}{x}

    𝑥 = −4𝑦

    𝑦 = 4𝑥

    𝑥 = \frac{y}{4}

    20s
  • Q3

    The length 𝑙 of a rectangular field varies inversely as its width 𝑤 is written as ____.

    𝑙 = \frac{k}{w}

    𝑙 = 𝑘𝑤

    𝑤 = 𝑘𝑙

    𝑤 = \frac{k}{l}

    20s
  • Q4

    If 𝑦 varies inversely as 𝑥 and 𝑦 = 12 when 𝑥 = 4, find 𝑦 when 𝑥 = 3.

    17

    18

    16

    15

    20s
  • Q5

    What mathematical equation describes the graph below?

    Question Image

    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 variation

    30s
  • Q6

    Which equation represents “y varies directly as x and z”?

    𝑦 = \frac{kx}{z}

    𝑦 = 𝑘𝑥𝑧

    𝑦 = 𝑥𝑧

    𝑦 = \frac{kz}{x}

    20s
  • Q7
    20s
  • Q8

    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.

    Combined

    Direct

    Joint

    Inverse

    20s
  • Q9

    “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?

    Php 250

    Php 300

    Php 200

    Php 350

    60s
  • Q10

    In the expression 3𝑥², 2 is called _____.

    Literal Coefficient

    Constant term

    Numerical Coefficient

    Exponent

    15s
  • Q11

    Which of the following is TRUE?

    (𝑏−5)0= 𝑏−5

    \frac{x^{-2}}{x^5}=x^3

    𝑎0𝑏2 = 𝑎𝑏0

    𝑥6 ∙ 𝑥3 = 𝑥9

    20s
  • Q12
    20s
  • Q13
    30s
  • Q14
    45s
  • Q15
    30s

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