Download Graphing Direct Variation –Tables and Equations

Graphing Direct Variation –Tables and Equations
Graph the following from each table.
1.
X
1
2
3
Y
2
4
6
2.
X
0
1
2
Y
0
3
6
3.
X
0
2
4
Y
0
5
10
Name:
Graph each direct variation from the equation. Make a table first and then graph.
4. Y=2x
X
Y
5. Y=1.5x
X
Y
6. Y=3x
X
Y
7. Suzy can walk 1 mile in 10 minutes. Create a table of values that represent distance and time.
X (distance)
Y (time)
What direct variation equation represents the time and distance that Suzy walks?
8. Complete the following table for y =
x
y
0
1
2
1
x.
2
3
4
Graph the table of values from #8.
Is this an example of a direct variation?____
Why or why not?
9. Two T-shirts cost $8.00. Draw a graph to represent how much 4, 6, 8, and 10 T-shirts
would cost.
What is the constant of proportionality (k)?____
10.
Looking at the graph, what do you know?
List at least 2 coordinates (x,y) from the graph.
Is this an example of direct variation? ______ Why or why not?
What direct variation equation is shown on the graph?
11. Which of the following equations is a direct variation?
A. 2x = y
B. x - 1 = y
C. y + 2 = x D. xy = 4