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Question
Find the equation of a line whose : y-intercept = −1 and inclination = 45°
Solution
Given, y-intercept = c = −1 and inclination = 45°.
Slope = m = tan 45° = 1
Substituting the values of c and m in the equation y = mx + c, we get,
y = x – 1, which is the required equation.
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