Flag 8 grade maths> How do you graph x + y = 1 using a table ...
question mark

How do you graph x + y = 1 using a table of values?

Aniket Singh , 4 Months ago
Grade
anser 1 Answers
Askiitians Tutor Team

Last Activity: 4 Months ago

To graph the equation x + y = 1 using a table of values, follow these steps:

1. **Rewrite the equation**: Start by solving for y in terms of x.
x + y = 1
y = 1 - x

2. **Choose values for x**: Pick several values for x, such as -2, -1, 0, 1, and 2.

3. **Calculate corresponding values of y**: For each x value, substitute it into the equation y = 1 - x to find the corresponding y values.

- When x = -2: y = 1 - (-2) = 1 + 2 = 3
- When x = -1: y = 1 - (-1) = 1 + 1 = 2
- When x = 0: y = 1 - 0 = 1
- When x = 1: y = 1 - 1 = 0
- When x = 2: y = 1 - 2 = -1

4. **Create a table**: The table of values will look like this:

| x | y |
| --- | --- |
| -2 | 3 |
| -1 | 2 |
| 0 | 1 |
| 1 | 0 |
| 2 | -1 |

5. **Plot the points**: On a graph, plot the points (x, y) from the table:
(-2, 3), (-1, 2), (0, 1), (1, 0), (2, -1)

6. **Draw the line**: After plotting the points, draw a straight line through them. This line represents the equation x + y = 1.

The graph will be a straight line that crosses the y-axis at (0, 1) and has a slope of -1 (the coefficient of x in the equation).

star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments