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The angle between the graph of the linear equation 239x – 239y + 5 = 0 and the x – axis is
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- 0°
- 60°
- 30°
- 45°
- 0°
Correct Option: D
Putting y = 0 in the equation 239x – 239y + 5 = 0
| ⇒ x = | ||
| 239 |
| ∴ Co-ordinates of A = |  | , 0 |  | |
| 239 |
Again putting x = 0 in the equation 239x – 239y + 5 = 0, – 239y = – 5
| ⇒ y = | ||
| 239 |
| ∴ Co-ordinates of B = | | 0 , | | |
| 239 |
| ∴ OA = OB = | ||
| 239 |
∴ ∠OAB = ∠OBA = 45°
because ∠AOB = 90°
