Search results

  1. M

    Translation/Reflection/Expansion/Compression of a graph

    The instructions state: Describe the graph of y = sqrt( 7 - x^2 - 6x ) relative to the graph of y = sqrt( x ). HINT: sqrt( 7 - x^2 -6x ) = sqrt( 7 - ( x^2 + 6x )); complete the square This is my work thus far: 7 - ( X^2 + 6x ) = 0 - ( x^2 + 6x ) = -7 above mult by -1 (on both sides) x^2 +...
  2. M

    Quadratic Formula

    Can I use the quadratic formula to factor an equation with two variables such as: 2x - 3xy + 4y = -4 Thanks!
  3. M

    Domain of a function

    Somehow this problem is probably a lot easier than I am making it out to be but I'm so stuck. I'm not sure where to begin. Let f(x) = x^2 - |x-2|, find the domain. My work: x^2 - |x-2| = 0 x^2 = |x-2| sqrt(x^2) = sqrt(|x-2|) I'm not sure why I went to square roots, I think I'm just...
Top