Graphing Linear Equations (Table Method)

Show your work for each problem.

1.
For the equation , what is the y-value when ?
1. a)
2. b)
3. c)
4. d)
Answer:
. The ordered pair is .
2.
For , find the y-value when .
Answer: 5
3.
Which ordered pair is on the graph of ?
1. a)
2. b)
3. c)
4. d)
Answer:
For : ✓. The other pairs don't satisfy the equation.
4.
For , what is y when ?
Answer: 5
5.
Create a table of values for using .
Answer: (-1,0), (0,1), (1,2)
1. When x = -1, what is y? 0
2. When x = 0, what is y? 1
3. When x = 1, what is y? 2
6.
For , what is y when ?
1. a)
2. b)
3. c)
4. d)
Answer:
7.
For , find the y-value when .
Answer: -3
8.
Create a table for using .
Answer: (-1,-5), (0,-3), (1,-1), (2,1)
1. When x = -1, what is y? -5
2. When x = 0, what is y? -3
3. When x = 1, what is y? -1
4. When x = 2, what is y? 1
9.
For , what is y when ?
1. a)
2. b)
3. c)
4. d)
Answer:
10.
For , what is y when ?
Answer: 7
. Negative times negative equals positive!
11.
Create a table for using .
Answer: (-2,5), (0,3), (2,1), (4,-1)
1. When x = -2, what is y? 5
2. When x = 0, what is y? 3
3. When x = 2, what is y? 1
4. When x = 4, what is y? -1
12.
For , which x-value gives y = 0?
1. a)
2. b)
3. c)
4. d)
Answer:
13.
For , at which x-value does the line cross the x-axis (where y = 0)?
Answer: 2.5
14.
Create a table for using .
Answer: (-2,-6), (0,-3), (2,0), (4,3)
1. When x = -2, what is y? -6
2. When x = 0, what is y? -3
3. When x = 2, what is y? 0
4. When x = 4, what is y? 3
15.
A phone plan costs a base fee plus a per-minute charge. The cost is modeled by where x is minutes and y is total cost in dollars. Create a table for 0, 50, 100, 150 minutes.
Answer: (0,15), (50,20), (100,25), (150,30)
1. What is the cost for 0 minutes? 15
2. What is the cost for 50 minutes? 20
3. What is the cost for 100 minutes? 25
4. What is the cost for 150 minutes? 30
16.
Which equation has the point on its graph?
1. a)
2. b)
3. c)
4. d)
Answer:
For : ✓. This point satisfies the equation.