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If f(x) = -2x2 + 8x - 4, which of the follwoing is true?
A. The maximum value of f(x) is - 4.
B. The graph of f opens upward.
C. The graph of f has no x-intercept
D. f is not a one to one function.​


Sagot :

Step-by-step explanation:

f(x) is a quadratic function and its graph is a parabola that may be intercepted by horizontal lines at two points and therefore is not a one to one function. The answer is D

Answer:

B or D sorry choose na lang kayo

Step-by-step explanation:

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