Math

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Find the point of intersection between y=2-(1/2)x and y=1+ax. (a=alpha sign). You answer will be a point in the xy plane whose coordinates involve the unknown a .
I got that which is
x=2/(2a+1), y=(1+2a)/(2a+1) <-intersection point

I need help is to: Find a (a=alpha sign) so that the intersection point has x-coordinate 10. How do I do this?

  • Math -

    You've done the hard part; you're almost there! You just lost sight of the simple bit.

    x = 2/(2a+1)

    we need to find a when x = 10

    10 = 2/(2a+1)

    Now find a

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