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insens350 [35]
3 years ago
8

Find f(-1) please help, not good at math.

Mathematics
1 answer:
bagirrra123 [75]3 years ago
7 0
This means that X in the equation equals -1
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Which number have the same value as 20 tens
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Plz answer everything i will do A B C D E F G and some other ones
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Write in vertex form (by completing the square)y=4x2+40x+96
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y=4x^2+40x+96\\ \\ The \ vertex \ form \ of \ the \ function \ is: \\ \\y = a(x - h)^2 + k \\ \\vertex =(h, k) \ is \ given \ by: \\ \\h = \frac{-b}{2a} , \ \ \ k = c -\frac{b^2}{4a} \\ \\a=4 , \ \ b=40 , \ \ c=96

h = \frac{-40}{2 \cdot 4}=\frac{-40}{8}=-5 \\ \\ k = 96 -\frac{40^2}{4 \cdot 4} =96-\frac{1600}{16} =96-100=-4 \\ \\ y = 4(x - (-5) )^2 + (-5)=4(x +5 )^2 -5


6 0
3 years ago
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