Question

Identity the graph of the equation 2x^2-4xy+2y^2-7x+7y= 0 then find the angle of rotation

Answer 1

this can be written as
2(x - y)(x - y) - 7(x - y) = 0

Answer 2

so can u simplify this?

Answer 3

(x - y)(2x - 2y - 7) = 0

giving y = x
and 2x - 2y - 7 = 0
so y = (1/2) (2x - 7)

Answer 4

oh - looks like you're not interested any more..

Answer 5

i'm showing you how to go about solving it

Answer 6

the result y=x shows that its a straight line going through the origin
and the other result gives a straight line y = x - 3.5
which is a straight line parallel to x=y but passing through the y-axis at -3.5

you have 2 parallel straight lines here