anonymous
  • anonymous
explain how the sign of a in the equation y=a(x-h)2+k tells you whether the parabola has a minimum or maximum value
Mathematics
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
If a is negative the parabola has a minimum because it curves down. If a is positive is curves up so it has a minimum. Do you need more description than that?
anonymous
  • anonymous
yes please what the question was asking is how does "a" distinguish whether it positive or negative
anonymous
  • anonymous
If "a" is negative the parabola has a minimum because it curves down. If "a" is positive the parabola curves up so it has a minimum.

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