Mathematics
Darren80
9

The graph of which function is decreasing over the interval (–4, ∞)? f(x) = (x + 4)2 + 4 f(x) = –(x + 4)2 + 4 f(x) = (x – 4)2 – 4 f(x) = –(x – 4)2 – 4

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(1) Answers
monicabaugh

ok, logic all of them are parabolas 1st and 3rd are opening up, so they defenitely increase, so no decraseing the vertex hs to be be at x=-4 y=a(x-h)^2+k h has to be -4 y=a(x+4)^2+k the answer is 2nd one or f(x)=-(x+4)^2+4

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