Answers edited by Jayden N.

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• What is the vertex of #y=-2x^2 + 2x + 5 #?
  
• How do you graph the parabola #y=(x-3)^2 +5# using vertex, intercepts?
  
• What is the range of the function #y= -3x² + 6x +4#?
  
• How do you rationalize the denominator and simplify #5/(sqrt3-1)#?
  
• How do you solve #x^2 + 9x = -7# graphically and algebraically?