anonymous
  • anonymous
What is the vertex and the equation of the axis of symmetry of the graph of y=x^2-6x-7?
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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Nnesha
  • Nnesha
formula to find x -coordinate of the vertex \[\huge\rm x=\frac{ -b }{ 2a }\] then substitute all x for its value into the equation to find y-coordinate a=leading coefficient b= middle term
anonymous
  • anonymous
so positive 6 over 2 times -1?
Nnesha
  • Nnesha
yes right !

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Nnesha
  • Nnesha
wait -1 ?
Nnesha
  • Nnesha
it's 1x^2 so should be positive
anonymous
  • anonymous
so (6/2(1))
Nnesha
  • Nnesha
right
Nnesha
  • Nnesha
so 6/2 =3 right ? now substitute x for 3 into the equation
ryanwhite499
  • ryanwhite499
Factor x2−6x−7 x2−6x−7 =(x+1)(x−7) Answer: (x+1)(x−7)

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