# Algebra

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1. Determine the constant of variation for the direct variation given.
(0, 0), (3, 12), (9, 36)
3
4
12
4
2. Determine the constant of variation for the direct variation given

1/2
1
2
2
3. Determine the constant of variation for the direct variation given.
Fat calories varies directly with the grams of fat. There are 27 calories for each 3 grams of fat.

1/9
3
9
9
4. R varies directly with S. When S is 16, R is 80.

1/5
5
16
5
5. Which of the following functions is a direct variation?

f(x) = 2x
f(x) = x + 2
f(x) = 2
f(x) = 2x
6. The points (5, 25) and (10, 50) lie on the graph. k = y/x, so k = 25/5, or 50/10, etc.

5
10
50
5
7. The table below shows a direct variation. What is the value of m?

x y
12 24
18 m
24 48

2
24
30
36
36
8. Tomar's paycheck varies directly with the hours he works. When Tomar works 5 hours, he gets paid \$60.00. How much does Tomar make in 8 hours?

\$75
\$80
\$96
\$120
\$96
9. Y varies directly with X and has a constant rate of change of 6. When the value of Y is 11, then the value of X could be _____.

equal to zero
less than 2
equal to 6
greater than 11
lass than 2
10. Select all of the following that are a direct variation.