Q2_Summative Test [Math 9, SY 2021-2022]

Combined

Inverse

Joint

Direct

a combination of direct, inverse, and joint variations

when one quantity increases and the other one decreases

a situation where one variable depends on two(or more) other variables

when two quantities increase at the same time or decrease at the same time

combined

inverse

joint

direct

Volume of a Rectangle

Body Mass Index

Ohm's Law

Simple Interest

₱ 12,000

₱ 14,000

₱ 10,000

₱ 16,000

$y=-\backslash frac\{8\}\{x\}$

$y=-8x$

$xy=-8$      

$xy=-\backslash frac\{1\}\{8\}$

$y=kxz^2$

$y=kxz$

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

$y=\backslash frac\{kx\}\{y^2\}$

y varies inversely as x, where 12 is the constant of variation

x varies inversely as y, where 108 is the constant of variation

x varies directly as y, where 108 is the constant of variation

y varies directly as x, where 12 is the constant of variation

y varies inversely as x, where 20 is the constant of variation

y varies inversely as x, where 40 is the constant of variation

y varies directly as x, where 40 is the constant of variation

y varies directly as x, where 20 is the constant of variation

$f=kg^2p,\backslash \; p=8$

$f=\backslash frac\{kg^2\}\{p\},\backslash \; p=8$

$f=kg^2p,\backslash \; p=18$

$f=\backslash frac\{kg^2\}\{p\},\backslash \; p=18$

1,047 Joules

1,704 Joules

1,740 Joules

1,470 Joules

$\backslash frac\{x^8\}\{x^5\}=x^3$

$\backslash left(ab^5\backslash right)^0=ab^5$

$x^6\backslash cdot\; x^\{-3\}=x^9$

$a^0b^\{-2\}=ab^\{-2\}$