Pre-Algebra
Unit 5: Graphing Linear Equations
Tables ↔ Equations
Name:
Worksheet 5.7
Create a table of values based on each equation, then answer the questions.
1. y = 2x + 5
x
a. Is there a constant rate of change, and if there is, what is it?
y
0
1
b. Does this show direct variation? (Is the relationship
proportional?)
2
9
x
y
x
y
x
y
2. y = -3x
a. Is there a constant rate of change, and if there is, what is it?
b. Does this show direct variation?
3. y = x2 – 1
a. Is there a constant rate of change, and if there is, what is it?
b. Does this show direct variation?
4. 6x + 2y = -8
a. Is there a constant rate of change, and if there is, what is it?
b. Does this show direct variation?
over
Answer the questions for each table.
5.
a. Is there a constant rate of change, and if there is, what is it?
x
y
4
12
6
18
8
24
c. Give an equation that corresponds to this table.
10
30
a. Is there a constant rate of change, and if there is, what is it?
x
y
1
1
2
3
3
5
c. Give an equation that corresponds to this table.
4
7
a. Is there a constant rate of change, and if there is, what is it?
x
y
10
-5
11
-6
12
-7
13
-8
b. Does this show direct variation?
6.
b. Does this show direct variation?
7.
b. Does this show direct variation?
c. Give an equation that corresponds to this table.