Question #238216

Find the equation of the line passes through the point (2,3) and the point of 

intersection of the line 3๐‘ฅ + 2๐‘ฆ = 2 and 4๐‘ฅ + 3๐‘ฆ = 7 meet.


1
Expert's answer
2021-09-28T15:04:03-0400

L1=3x+2y-2=0

L2=4x+3y-7=0

P=(2,3)

Find the intersection point of L1 and L2

x=((โˆ’2โˆ—3)โˆ’(2โˆ—โˆ’7)(2โˆ—4)โˆ’(3โˆ—3))x=(\frac{(-2*3)-(2*-7)}{(2*4)-(3*3)})

x=8โˆ’1=โˆ’8x=\frac{8}{-1}=-8

3(-8)+2y=2

2y=2+24

y=13

Q=(-8,13)

Equation of QP will be given by;

yโˆ’y1=(y2โˆ’y1)(x2โˆ’x1)(xโˆ’x1)y-y_1=\frac{(y_2-y_1)}{(x_2-x_1)}(x-x_1)

yโˆ’13=3โˆ’132+8(x+8)y-13=\frac{3-13}{2+8}(x+8)

yโˆ’13=โˆ’1(x+8)y-13=-1(x+8)

yโˆ’13=โˆ’xโˆ’8y-13=-x-8

x+yโˆ’13+8=0x+y-13+8=0

x+yโˆ’5=0x+y-5=0 Is the equation of the line.


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