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My graphs of the vertex and standard forms of a cubic function are not the same? What did I do wrong?
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- nbsale (Freond)Lv 65 years agoFavorite Answer
2x^3 + 12x^2 + 24x + 20
= 2(x^3 + 6x^2 + 12x + 10)
= 2(x^3 +6x^2 + 12x + 8 + 2)
= 2(x+2)^3 + 4
You have the 0.5 inside the ( )^3 which is wrong.
4(0.5(x+2))^3 + 4
= 4(1/8)(x+2)^3 + 4
= (1/2)(x+2)^3 + 4
I don't know how you got the 4 and 0.5 in front, but if they were together, you would have the correct answer. But somehow the 0.5 is cubed, which is what is throwing it off.
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