Monday, January 26, 2015

At what point does the curve y = 3x^2 - 5x + 3 meet the line y= x.

Given the curve 3x^2  5x + 3 and the line y=
x


We need to find the intersection points between the curve
and the line y.


The points of intersections are the points
that verifies the following.


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


Let us move x to the left
side.


==> 3x^2 - 6x + 3 =
0


Now we will divide by
3.


==> x^2 - 2x + 1 =
0


Now we will
factor.


==> (x-1)(x-1) =
0


==> x = 1


==>
y= 1


Then the point of intersection is
(1,1)

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