Answers created by Blackad

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• How do you solve #4+ 2i - ( a + 4i ) = 9- 2i#?
  
• How do you find the slope perpendicular to #7x+2y=0#?
  
• How do you simplify #1/2(x-5)#?
  
• How can I solve #y=a(x-1)^2+k# when they only give me two points which are : (2,6) and (3,12)?