Free Printable Q3_QUIZ1_DIRECT AND INVERSE VARIATION

1.

The cost c varies directly as the number n of pencils is written as

a)

$c=kn$

b)

$k=cn$

c)

$n=\frac{k}{c}$

d)

$c=\frac{k}{n}$

2.

The speed (r) of a moving object is inversely proportional to the time (t) travelled is written as

a)

$r=kt$

b)

$r=\frac{k}{t}$

c)

$t=kr$

d)

$\frac{r}{k}=r$

3.

The fare F of a passenger varies directly as the distance d of his destination is written as

a)

$k=\frac{F}{d}$

b)

$F=kd$

c)

$F=\frac{k}{d}$

d)

$d=kF$

4.

Which is an example of a direct variation?

a)

$xy=10$

b)

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

c)

$y=5x$

d)

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

5.

y varies directly as x and y=32 when x=4. Find the constant of variation.

a)

$8$

b)

$28$

c)

$36$

d)

$128$

6.

What happened to T when h is doubled in the equation $T=4h$ ?

a)

T is halved

b)

T is tripled

c)

T is doubled

d)

T becomes zero

7.

If y varies directly as x and y=12 when x=4, find y, when x=12.

a)

$3$

b)

$4$

c)

$36$

d)

$48$

8.

If y varies inversely as x and $y=\frac{1}{3}$ when $x=8$ , find y when $x=-4.$

a)

$-\frac{2}{3}$

b)

$\frac{2}{3}$

c)

$-\frac{32}{3}$

d)

$\frac{32}{3}$

9.

What happens to y when x is tripled in the relation $y=\frac{k}{x}$ ?

a)

y is tripled.

b)

y is doubled.

c)

y is halved.

d)

y is divided by 3

10.

Aaron's income varies directly as the number of days that he works . If he earns Php 8,000.00 in 20 days , how much he will earn if he worked 3 times as long ?

a)

Php 26, 0000

b)

Php 24, 000

c)

Php 20, 000

d)

Php 16, 000

Q3_QUIZ1_DIRECT AND INVERSE VARIATION_ACCURACY

Total questions: 10

Worksheet time: 3hrs 30mins

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