What is the vertex form of #y=(x+4)(2x-1)#?

Answer 1

#y=2(x+7/4)^2-81/8#

First you need to expan this function #y=2x^2+7x-4# And I need to transform this function into this type like #y=a(x-h)^2+k# So #y=2(x^2+7/2x)-4# #y=2(x^2+7/2x+49/16)-4-49/8# Final #y=2(x+7/4)^2-81/8#

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Answer 2

Julia Adams

The vertex form of the given quadratic function ( y = (x + 4)(2x - 1) ) is ( y = 2x^2 + 7x - 4 ).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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