Name: ___________________________________________
Score:______________
Grade: __________________
Date: ______________
Activity 1:
Direct Variation
Jelo plans to buy rice out of his own savings. He wants to help his mother whose work has been affected
of the community quarantine implemented by the government due to the pandemic. The variety of rice he decides
to buy cost Php40 a kilo.
Let x be the number of kilos and y be the cost of rice.
Answer the following:
1. Complete the table:
Number of Kilos (x)
1
2
3
Total Cost (y)
40
80
120
4
5
2. As the number of kilos (x) increases, what happens to the total cost (y)? Will it increase, decrease or remain
the same?
3. Plot the points (x,y) in the plane below. What have you observed with the points plotted?
200
Total Cost (y)
160
120
80
40
0
1
2
3
4
5
Number of Kilos (x)
4. Complete the equation that shows the relationship between number of kilos (x) and the total cost (y) of the
rice.
y = _______________
Name: ___________________________________________
Score:______________
Grade: __________________
Date: ______________
Activity 1:
Direct Variation
Jelo plans to buy rice out of his own savings. He wants to help his mother whose work has been affected
of the community quarantine implemented by the government due to the pandemic. The variety of rice he decides
to buy cost Php40 a kilo.
Let x be the number of kilos and y be the cost of rice.
Answer the following:
1. Complete the table:
Number of Kilos (x)
1
2
3
Total Cost (y)
40
80
120
4
5
2. As the number of kilos (x) increases, what happens to the total cost (y)? Will it increase, decrease or remain
the same?
3. Plot the points (x,y) in the plane below. What have you observed with the points plotted?
200
Total Cost (y)
160
120
80
40
0
1
2
3
4
5
Number of Kilos (x)
4. Complete the equation that shows the relationship between number of kilos (x) and the total cost (y) of the
rice.
y = _______________