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Maths Exercices
Find the constant of variation from a table

Determine the constant of variation.

Miles, x
Gallons, y
25
1
50
2
75
3
100
4

Compare the ratios to check for a common ratio.

Since the ratios are the same, the function is a direct variation. The constant of variation is


The relationship between income and number of hours a local fast food restaurant is open is linear.

Hours, h
Income, $
1
1930
2
3860
3
5790
4
7720

Determine the constant of variation.

Solution: