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 amount a babysitter charges is shown. The relationship between the number of hours and the amount of money is linear.
Hours |
Charge |
4 |
8 |
5 |
10 |
6 |
12 |
7 |
14 |
Determine the constant of variation.
Solution: