Recent content by indio1

So, i then get this 4x'2 - 8x' - y' = 0. Put in other form: y' = 4x'2 - 8x' y' + 4 = 4(x'2 - 2x' + 1) y' = 4(x' - 1)2 - 4 vertex is at (1,-4) in x'y'-coordinates. use the formulae for expressing x,y in terms of x',y'. the x-coordinate of the vertex is (1)(√2/2) -...

I was given the equation: 2sqrt(2)(x+y)^2=7x+9y I need to then: a)Use rotation of axes to show that the following equation represents a parabola b) Find the XY- and xy- coordinates of the vertex and focus c) Find the equation of the directrix in XY- and xy-coordinates Formulas...