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: