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Natali [406]
3 years ago
5

Give an example of a quadratic function has a maximum value. Explain how you know it has a maximum algebraically

Mathematics
1 answer:
tankabanditka [31]3 years ago
8 0

Answer:

y = -x²  

Step-by-step explanation:

The simplest quadratic I can think of is

y = -x²

It must have a maximum because as

x ⟶  -∞, y ⟶ -∞ and as

x ⟶ +∞, y ⟶ -∞.

There must be a maximum somewhere between the two extremes.

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