2nd Quarter Summative Test

Quiz by Maria Resureccion M. Borja

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30 questions
• Q1

1.  In variation, k stands for                 .

quotient

product

difference

constant of variation

300s
• Q2

The statement “y varies directlyas x and inversely as thesquare of z” is an example of

.

direct variation

combined variation

inverse variation

joint variation

300s
• Q3

What is the value of 12?

1

1/2

12

-1/2

300s
• Q4

Rewrite 3 2/3 in radical form.

$\sqrt\left[3\right]\left\{^\left\{3^2\right\}\right\}$

$\sqrt\left[3\right]\left\{3\right\}$

$\sqrt\left\{6\right\}$

$\sqrt\left\{3\right\}$

300s
• Q5

Which of these equations illustrates direct variation?

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

xy = 10

y = 5x

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

300s
• Q6

Which of these equations illustrates combined variation?

$w=\frac\left\{k\right\}\left\{b\right\}$

$w=\frac\left\{kc\right\}\left\{b\right\}$

$w=kb$

$w=kbc$

300s
• Q7

1.  Simplify: 8x2y0z0

8x2yz

8xyz

8x2y0z0

8x2

300s
• Q8
300s
• Q9

The “speed r of a moving object is inversely proportional to the time t travelled”can be written as

t = kr

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

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

r = kt

300s
• Q10

Which of the following is an example of a joint variation?

c = k/n

x = ky/z

a = kbc

r = kt

300s
• Q11
300s
• Q12

Which of the following illustrates direct square variation?

w =kbc2

w = k/b2

w = kb2

w = kc/b2

300s
• Q13

If the exponent of a certain base is zero, then the value is                  .

undefined

1

negative

0

300s
• Q14

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

T is halved

T is tripled

T is doubled

a.  T becomeszero

300s
• Q15

Inverse means             .

zero

constant

opposite

direct

300s

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