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natima [27]
4 years ago
11

Which represents a quadratic function?

Mathematics
2 answers:
Shkiper50 [21]4 years ago
8 0
B. x^2 +2x-5 is a square and basically a quadratic function
Lorico [155]4 years ago
6 0

Answer:

B)  f (x) = x² + 2x − 5 is quadratic function .

Step-by-step explanation:

Given : Functions .

To find : Which represents a quadratic function.

Solution : We have given functions .

Quadratic function in form of ax² + bx + c = 0 which has degree 2.

Then we can see f (x) = x² + 2x − 5  inform of quadratic function .

Where , a = 1 ,b =2 ,c = -5.

Option D  also has degree 2 but its coefficient of  x² is 0. so, we will not consider it.

Therefore, B)  f (x) = x² + 2x − 5 is quadratic function .

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*****************************************************

6n² + 53n - 79 → (6)( -79) = -474 (find 2 numbers whose product is -474 and sum is 53)  DOES NOT EXIST! only factors are: (1, 474) (2, 237) (3, 158) (6, 79)

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