Question 1

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

Accepted Answer

I= $\frac{k}{^{d^2}}$

Answer

d2=kI

Answer

d² = $\frac{k}{I}$

Answer

I = kd2

Question 2

In inverse variation, variable y increases when the variable x decreases at the same rate, and vice versa.

Accepted Answer

true

Answer

false

Question 3

Given that y varies inversely with x, if x =7 and y = 4, what is y when x = 2?

Accepted Answer

14

Answer

28

Answer

-14

Answer

12

Question 4

Which is an example of inverse variation?

Accepted Answer

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

Answer

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

Answer

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

Answer

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

Question 5

Which variation statement represents the given table of values?

Accepted Answer

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

Answer

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

Answer

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

Answer

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

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