Saturday, May 31, 2014

Verify if the lines y= 2x-3 , y= 3x+5 , y= x-11 meet at one point

Given the three lines:


y=
2x-3 .........(1)


y=
3x+5.........(2)


y=
x-11..........(3)


First we will determine the point of
intersection between the lines (1) and (2).


==> 2x-3
= 3x + 5


==> x = -8 => y=
-19


Then the point of intersection for (1) and (2) is (-8,
-19).


Now we will determine the intersection point between
(1) and (3).


==> 2x-3 =
x-11


==> x = -8 ==> x =
-19


Then the intersection point is
(-8,-19).


Then all three lines meet at the
same point which is (-8, -19).

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