What is the equation of the line whose y-intercept is $$ - \frac{3}{4}$$ and making an angle of 45° with the positive x-axis?
A. 4x - 4y = 3
B. 4x - 4y = -3
C. 3x - 3y = 4
D. 3x - 3y = -4
Answer: Option A
Solution (By Examveda Team)
Standard equation of the line y = mx + c∴ m = tanθ = tan45° (θ = 45°)
Given
m = 1
∴ c = $$ - \frac{3}{4}$$
New required equation of the line ⇒ y = mx + c
⇒ y = 1 × x $$ - \frac{3}{4}$$
⇒ 4y = 4x - 3
⇒ 4x - 4y = 3
Related Questions on Coordinate Geometry
In what ratio does the point T(x, 0) divide the segment joining the points S(-4, -1) and U(1, 4)?
A. 1 : 4
B. 4 : 1
C. 1 : 2
D. 2 : 1
A. 2x - y = 1
B. 3x + 2y = 3
C. 2x + y = 2
D. 3x + 5y = 1
If a linear equation is of the form x = k where k is a constant, then graph of the equation will be
A. a line parallel to x-axis
B. a line cutting both the axes
C. a line making positive acute angle with x-axis
D. a line parallel to y-axis

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