Critical Thinking / Discussion / Writing

  1. 127.

    1. ax2+bx+c=0

    2. y=c

    3. b24ac<0

    4. Not possible

  2. 129.

    1. 9

    2. 8

  3. 131. (, 8)

  4. 133. (, 0)(0, )

  5. 135. 3, 3, 2

  6. 137. 51,25

  7. 139. f(x)=32x2, g(x)=x+3, and h(x)=2x2+1

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