2nd Quarter Summative Test

Quiz by Maria Resureccion M. Borja

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1. In variation, k stands for .
29

quotient
product
difference
constant of variation

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30 questions

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Q1
1. In variation, k stands for .
quotient
product
difference
constant of variation
300s
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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
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Q3
What is the value of 1²?
1
1/2
12
-1/2
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Q4
Rewrite 3 ^2/3 in radical form.
$\sqrt[3]{^{3^2}}$
$\sqrt[3]{3}$
$\sqrt{6}$
$\sqrt{3}$
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Q5
Which of these equations illustrates direct variation?
$\frac{2}{y}=x$
xy = 10
y = 5x
y = $\frac{2}{x}$
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Q6
Which of these equations illustrates combined variation?
$w=\frac{k}{b}$
$w=\frac{kc}{b}$
$w=kb$
$w=kbc$
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Q7
1. Simplify: 8x²y⁰z⁰
8x²yz
8xyz
8x²y⁰z⁰
8x²
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Q8
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Q9
The “speed r of a moving object is inversely proportional to the time t travelled”can be written as
t = kr
$\frac{r}{k}=t$
$r=\ \frac{k}{t}$
r = kt
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Q10
Which of the following is an example of a joint variation?
c = k/n
x = ky/z
a = kbc
r = kt
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Q11
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Q12
Which of the following illustrates direct square variation?
w =kbc²
w = k/b²
w = kb²
w = kc/b²
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Q13
If the exponent of a certain base is zero, then the value is .
undefined
1
negative
0
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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
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Q15
Inverse means .
zero
constant
opposite
direct
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Q16
Translate the statement m varies directly as x and inversely as the cube of y.
m = y³/kx
m = kxy³
m = kx/y³
m = x/ky³
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Q17
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Q18
If y varies directly as x, and y = 12 when x = 4, find y when x = 12.
4
3
48
36
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Q19
What is the value of 3⁰4^-2?
1/16
1/12
16
12
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Q20
What is the principal root of 25^1/2?
5
625
-5
12.5
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