Direct and Inverse Variation
Quiz by CHONALYN TECSON
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- Q1
What type of variation where the situation produces a pair of numbers whose product is constant?
inverse variation
both
direct variation
neither
30s - Q2
A direct variation is a situation produces pairs of numbers whose ______ is constant.
quotient
sum
difference
product
30s - Q3
The amount of money raised in a concert to the number of tickets sold is an example of
both
direct variation
inverse variation
neither
30s - Q4
The age of used smartphone to its resale value is an example of
neither
direct variation
both
inverse variation
30s - Q5
Which is an example of inverse variation?
The total salary to the number of working days.
The time of the travel to the speed of the bike
The cost of apple to the number of pieces.
The amount of monthly expenditures to the number of family members.
30s - Q6
The price P varies directly as the number n of oranges is written as
n = k/P
n = kP
P = kn
P = k/ n
30s - Q7
Which is an example of inverse variation?
y=7/x
y = x/ 7
7y = x
y = 7x
30s - Q8
Which of the following describes a direct variation?
30s - Q9
Which mathematical equation describes the graph below?
y=x/12
y=12x
y=1/12x
y = 12/x
30s - Q10
Which variation statement represents the table of values below?
x varies directly as y where 3 is the constant of variation
y varies inversely as x where 3 is the constant of variation
y varies directly as x where 3 is the constant of variation
x varies inversely as y where 3 is the constant of variation
30s - Q11
If y varies directly as x and y = 26 when x = 1 2 , find the constant of variation.
28
52
26
13
30s - Q12
If x varies directly as y and x = 54 when y = 9, find y when x = 24.
144
6
4
96
30s - Q13
If y varies inversely as x and y = 12 when x = 8, find y when x = 4.
12
16
10
24
30s - Q14
The time it takes Amanda to get to the school varies inversely as her driving speed. Averaging 20 kph in bad traffic, it takes her 3 2 hours. How long would the trip take averaging 50 kph?
2/3 hours
3/5 hours
1/2 hours
3/4 hours
30s - Q15
The fare rate of taxi varies directly as the distance travelled. When the distance is 12 km, the fare is P 162. Find the fare when the distance is 40 km.
P 520
P 540
P 550
P 530
30s
