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Tamiku [17]
3 years ago
6

Which of the following is a quadratic function?

Mathematics
1 answer:
serious [3.7K]3 years ago
3 0
<span>a. y = x^2 – 81 is a quadratic function.
According to the definition: 
A quadratic function is defined as a function with the maximum coefficient of 2.Only first option has a coefficient of 2 and the rest have not.</span>
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