Find the equation of a line whose :
y-intercept = -1 and inclination = 45°.
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m = tan θ = tan 45° = 1.
Equation of a line : y = mx + c
Substituting values we get,
y = x - 1.
Hence, equation of line is y = x - 1.
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Find the equation of a line which passes through (5, 4) and makes an angle of 60° with the positive direction of the x-axis.
The equation of a line with x-intercept 7 and y-intercept -7 is :
x - y = 7
y - x = 7
x + y + 7 = 0
x + y = 7