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Answered

9. What is the standard form of the quadratic function y = x² -
4x - 10?
A. f(x)=(x + 2)²- 14
B. f(x)=(x - 2)² - 14
C.f(x)=(x + 2)² + 14
D. f(x)=(x - 2)² + 14​

Sagot :

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Answer:

B

Step-by-step explanation:

f(x) = (x-2)² - 14

= (x-2)(x-2) - 14

= x²-4x+4-14

f(x) =x²-4x-10

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