How many x-intercepts are there in y = –3x2 + 4x + 4

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asked Jul 27, 2017 114k views

4 votes

How many x-intercepts are there in y = –3x2 + 4x + 4

Mathematics
high-school

Bruno Ranschaert asked

by Bruno Ranschaert

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You can factor it to find the answer:

–3x^2 + 4x + 4
–(3x^2 - 4x - 4)
–(3x + 2)(x - 2)

x=-2/3 or 2, which means that there are x intercepts, at -2/3 and 2.

Michael Ruhnau answered Jul 29, 2017

by Michael Ruhnau

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4 votes

y = -3x^2 + 4x + 4

Educated guess: There may be about 2 x - intercepts in the equation.

Jef Patat answered Aug 3, 2017

by Jef Patat

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