# G-9 Quarter 2 Pre-Test

## Quizย by Ma. Aylene C. Fabillar

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- Q1
Which is an example of direct variation?

๐ฆ = ย $\backslash frac\{2\}\{x\}$

๐ฅ๐ฆ = 2

๐ฆ = 2๐ฅ

๐ฅ =$\backslash frac\{1\}\{2y\}$

30sM9AL-IIa-1 - Q2
Which is an example of inverse variation?

๐ฆ = 4๐ฅย

๐ฅ =$\backslash frac\{y\}\{4\}$

๐ฆ =$\backslash frac\{4\}\{x\}$

๐ฅ = โ4๐ฆ

30sM9AL-IIa-1 - Q3
The length ๐ of a rectangular field varies inversely as its width ๐ค is written as ____.

๐ค =$\backslash frac\{k\}\{l\}$

๐ =$\backslash frac\{k\}\{w\}$

๐ค = ๐๐ย ย ย

๐ = ๐๐ค

30sM9AL-IIa-1 - Q4
What mathematical equation describes the graph below?

๐ฆ varies directly as ๐ฅ, where 12 is the constant of variation

๐ฆ varies inversely as ๐ฅ, where 2 is the constant of variation

๐ฆ varies directly as ๐ฅ, where 2 is the constant of variation

๐ฆ varies inversely as ๐ฅ, where 12 is the constant of variation

30sM9AL-IIa-b-1 - Q5
If ๐ฆ varies inversely as ๐ฅ and ๐ฆ = 12 when ๐ฅ = 4, find ๐ฆ when ๐ฅ = 3.

16ย

15

18

17

30sM9AL-IIa-1 - Q6
Which equation represents โy varies directly as x andzโ?

๐ฆ = ๐๐ฅ๐ง

๐ฆ = ๐ฅ๐ง

y=$\backslash frac\{kz\}\{x\}$

y=$\backslash frac\{kx\}\{z\}$

30sM9AL-IIa-1 - Q730sM9AL-IIa-1
- Q8
It is defined as the variation where a quantity depends on two or moreother quantities, whereas one quantity varies directly while the other quantityvaries inversely.

Inverse

Direct

Joint

Combined

30sM9AL-IIa-1 - Q9
โThe Interest earned by a savings account of Mr. Virayis jointly proportional to the Time and its Principal amount. After one quarter(3 months), the interest for a principal amount of Php 6,000 is Php 120.โ Howmuch interest is earned within 5 months if the principal amount is Php 7,500?

Php 300

Php 350

Php 250

Php 200

30sM9AL-IIb-c-1 - Q10
In the expression 3๐ฅยฒ, 2 is called _____.

Constant Term

Literal Coefficient

Exponent

Numerical Coefficient

30sM9AL-IIe-1 - Q11
Which of the following is TRUE?

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

๐

^{0}๐^{2}= ๐๐^{0}(๐โ

^{5})^{0}= ๐^{โ5}๐ฅ

^{6}โ ๐ฅ^{3}= ๐ฅ^{9}ย ย30sM9AL-IIa-b-1 - Q1230sM9AL-IId-1
- Q1330sM9AL-IId-1
- Q1430sM9AL-IIe-1
- Q1530sM9AL-IIf-1