Mathematics
Draw the graph of line 2x + y = 5.
Coordinate Geometry
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Answer
Step 1:
Give at least three suitable values to the variable x and find the corresponding values of y.
Let x = -1, then 2 (-1) + y = 5 ⇒ y = 7
Let x = 0, then 2 0 + y = 5 ⇒ y = 5
Let x = 1, then 2 1 + y = 5 ⇒ y = 3
Step 2:
Make a table (as given below) for the different pairs of the values of x and y:
| x | -1 | 0 | 1 |
|---|---|---|---|
| y | 7 | 5 | 3 |
Step 3:
Plot the points, from the table, on a graph paper and then draw a straight line passing through the points plotted on the graph.
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