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Question
The equation of a line is x – y = 4. Find its slope and y-intercept. Also, find its inclination.
Solution
Given equation of a line is x − y = 4
`=>` y = x − 4
Comparing this equation with y = mx + c, we have:
Slope = m = 1
y-intercept = c = −4
Let the inclination be θ.
Slope = 1 = tan θ = tan 45°
∴ θ = 45°
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