Inverse Variation

Quiz by Tasnim Aina

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- Q1
The intensity I of light produced by a light source varies inversely as the square of the distance d from the source is written as

d

^{2}=kId

^{2}= $\backslash frac\{k\}\{I\}$*I=$\backslash frac\{k\}\{^\{d^2\}\}$*I = kd

^{2}30s - Q2
In inverse variation, variable y increases when the variable x decreases at the same rate, and vice versa.

truefalseTrue or False30s - Q3
Given that y varies inversely with x, if x =7 and y = 4, what is y when x = 2?

28

-14

14

12

30s - Q4
Which is an example of inverse variation?

$y=13x$

$y=\backslash frac\{13\}\{x\}$

$x=\backslash frac\{y\}\{13\}$

$y=\backslash frac\{x\}\{13\}$

30s - Q5
Which variation statement represents the given table of values?

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

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

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

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

30s