anonymous
  • anonymous
For the given equation, list the intercepts and test for symmetry: y=x^2-x-20
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
for x intercept put y =0 and get x for y intercept put x =0 and get y
anonymous
  • anonymous
i know that part so then I get 0=x^2-x-20..im lost here
anonymous
  • anonymous
im not sure how to do the x..its been a while.. haha

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anonymous
  • anonymous
0=x^2-x-20 0 = x^2-5x+4x -20 0 = x(x-5) +4(x-5) 0 = (x+4)(x-5) means that x = -4 and x = 5 which are required x- intercepts
anonymous
  • anonymous
wow.. im lost.. how did you get the -5x and 4x?
anonymous
  • anonymous
i feel so dumb haha
IrishBoy123
  • IrishBoy123
the crude working and the curve itself attached.
anonymous
  • anonymous
i got it by guess actualy when we factorize an equation by grouping method we do guesses to find these proper numbers
anonymous
  • anonymous
have you ever done factorization y grouping method???
anonymous
  • anonymous
*by
anonymous
  • anonymous
......i dont know.. i havent taken a math class in so long..

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