  2nd Quarter : PreTest in Mathematics 10

Quiz by Ma. Carmela D. Laudit

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Correct quiz answers unlock more play!  40 questions
• Q1

Which is an example of direct variation?

𝑥 = $\frac\left\{1\right\}\left\{2y\right\}$

𝑦 = 2𝑥

𝑥𝑦 = 2

𝑦 =  $\frac\left\{2\right\}\left\{x\right\}$

20s
• Q2

Which is an example of inverse variation?

𝑦 = $\frac\left\{4\right\}\left\{x\right\}$

𝑥 = −4𝑦

𝑦 = 4𝑥

𝑥 = $\frac\left\{y\right\}\left\{4\right\}$

20s
• Q3

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

𝑙 = $\frac\left\{k\right\}\left\{w\right\}$

𝑙 = 𝑘𝑤

𝑤 = 𝑘𝑙

𝑤 = $\frac\left\{k\right\}\left\{l\right\}$

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? 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 = $\frac\left\{kx\right\}\left\{z\right\}$

𝑦 = 𝑘𝑥𝑧

𝑦 = 𝑥𝑧

𝑦 = $\frac\left\{kz\right\}\left\{x\right\}$

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

$\frac\left\{x^\left\{-2\right\}\right\}\left\{x^5\right\}=x^3$

𝑎0𝑏2 = 𝑎𝑏0

𝑥6 ∙ 𝑥3 = 𝑥9

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

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