Direct and Inverse Variations Quiz

Quiz by Aiza Malto

Grade 9

Mathematics

Philippines Curriculum: Grades K-10 (MELC)

Feel free to use or edit a copy

includes Teacher and Student dashboards

Measures 1 skill from
Grade 9
Mathematics
Philippines Curriculum: Grades K-10 (MELC)

M9AL-IIa-1

Track each student's skills and progress in your Mastery dashboards

With a free account, teachers can

edit the questions
save a copy for later
start a class game
automatically assign follow-up activities based on students’ scores
assign as homework
share a link with colleagues
print as a bubble sheet

Q 1/15
Score 0
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
29
$d^2=\frac{k}{l}$
$l=kd^2$
𝑑² = 𝑘𝐼
$l=\frac{k}{d^2}$

Our brand new solo games combine with your quiz, on the same screen

Correct quiz answers unlock more play!

15 questions

Show answers

Q1
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
$d^2=\frac{k}{l}$
$l=kd^2$
𝑑² = 𝑘𝐼
$l=\frac{k}{d^2}$
60s
M9AL-IIa-1
Q2
The number of kilograms of water 𝑤 in a person’s body varies directly as the person’s mass 𝑚 is written as
$w=\frac{k}{m}$
$m=\frac{k}{w}$
𝑚 = 𝑘𝑤
𝑤 = 𝑘𝑚
60s
M9AL-IIa-1
Q3
Which is an example of direct variation?
$y=\frac{-8}{x}$
𝑥𝑦 = −8
$xy=-\frac{1}{8}$
𝑦= −8𝑥
60s
M9AL-IIa-1
Q4
if 𝑦 varies directly as 𝑥 and𝑦 = 30 when 𝑥 = 5,find the constant of variation.
6
150
35
25
60s
M9AL-IIa-1
Q5
Which is an example of inverse variation?
$y=13x$
$x=13y$
$x=\frac{y}{13}$
$y=\frac{13}{x}$
60s
M9AL-IIa-1
Q6
If 𝑦 varies inversely as 𝑥 and 𝑦 = 6 when 𝑥 = 12, find the constant of variation
18
72
2
6
60s
M9AL-IIa-1
Q7
Which of the following describes a direct variation?
60s
M9AL-IIa-1
Q8
Which of the following describes an inverse variation?
60s
M9AL-IIa-1
Q9
Which variation statement describes the graph below?
𝑦 varies inversely as 𝑥, where 20 is the constant of variation
𝑦 varies inversely as 𝑥, where 40 is the constant of variation
𝑦 varies directly as 𝑥, where 20 is the constant of variation
𝑦 varies directly as 𝑥, where 40 is the constant of variation
60s
M9AL-IIa-1
Q10
Which mathematical equation represents the table of values below
$x=\frac{4}{x}$
𝑥 = 4𝑦
$y=\frac{4}{x}$
𝑦 = 4𝑥
60s
M9AL-IIa-1
Q11
If 𝑦 varies directly as 𝑥 and 𝑦 = 120 when 𝑥 = 8, find 𝑦 when 𝑥 = 10. A.
96
15
150
80
120s
M9AL-IIa-1
Q12
If 𝑦 varies directly as 𝑥 and 𝑦 = 4 when 𝑥 = 10, find 𝑥 when 𝑦 = 12.
30
8
14
40
120s
M9AL-IIa-1
Q13
If 𝑦 varies inversely as 𝑥 and 𝑦 = 14 when 𝑥 = 3, find 𝑦 when 𝑥 = 6.
10
9
7
8
120s
M9AL-IIa-1
Q14
120s
M9AL-IIa-1
Q15
The number of days to construct a house varies inversely as the number of workers. It takes 10 days for 6 workers, how many workers is needed to finish the job in 12 days?
7
5
4
6
300s
M9AL-IIa-1

Teachers give this quiz to your class

Direct and Inverse Variations Quiz

Quiz by Aiza Malto

Measures 1 skill fromGrade 9MathematicsPhilippines Curriculum: Grades K-10 (MELC)

Our brand new solo games combine with your quiz, on the same screen

Measures 1 skill from
Grade 9
Mathematics
Philippines Curriculum: Grades K-10 (MELC)