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iris [78.8K]
3 years ago
9

The functions f(x) = (x + 1)2 − 2 and g(x) = −(x − 2)2 + 1 have been rewritten using the completing-the-square method. Is the ve

rtex for each function a minimum or a maximum? Explain your reasoning for each function.

Mathematics
1 answer:
Naddika [18.5K]3 years ago
3 0

Answer:

  • f(x) vertex is a minimum
  • g(x) vertex is a maximum

Step-by-step explanation:

The reasoning is the same in each case: the sign of the coefficient of the squared term indicates the direction the parabola opens. If it opens upward, the vertex is a minimum; if it opens downward, the vertex is a maximum.

f(x) -- the sign of the squared term is positive, so the vertex is a <em>minimum</em>.

g(x) -- the sign of the squared term is negative, so the vertex is a <em>maximum</em>.

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