The graphs of the equations $$4x + \frac{1}{3}y = \frac{8}{3}$$ and $$\frac{1}{2}x + \frac{3}{4}y + \frac{5}{2} = 0$$ intersect at a point P. The point P also lies on the graph of the equation:
A. 4x - y + 7 = 0
B. x - 3y - 12 = 0
C. x + 2y - 5 = 0
D. 3x - y - 7 = 0
Answer: Option D
Solution (By Examveda Team)
$$\eqalign{ & 4x + \frac{1}{3}y = \frac{8}{3} \cr & 12x + y = 8{\text{ }}{\text{. }}{\text{. }}{\text{. }}{\text{. }}{\text{. }}{\text{. }}\left( {\text{i}} \right) \cr & \frac{1}{2}x + \frac{3}{4}y + \frac{5}{2} = 0 \cr & 2x + 3y = - 10{\text{ }}{\text{. }}{\text{. }}{\text{. }}{\text{. }}{\text{. }}{\text{. }}\left( {{\text{ii}}} \right) \cr & {\text{Solve equation }}\left( {\text{i}} \right){\text{ and }}\left( {{\text{ii}}} \right) \cr & 12x + y = 8 \cr & \underline {2x + 3y = - 10} \,\,\,\,\, * 6 \cr & 12x + y = 8 \cr & 12x + 18y = - 60 \cr & \underline { - \,\,\,\,\, - \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, + \,\,\,} \cr & - 17y = 68 \cr & y = - 4 \cr & x = 1 \cr & P = \left( {1,\, - 4} \right) \cr & {\text{Only option }}\left( {\text{D}} \right){\text{satisfy in this point }}P \cr & 3x - y - 7 = 0 \cr & 3 \times 1 - \left( { - 4} \right) - 7 = 0 \cr & 0 = 0\,\,\,\left[ {{\text{satisfy}}} \right] \cr} $$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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