sandy40 sandy40

17-05-2016
Mathematics

contestada

What are the x intercepts of the graph of this function? Y=6*2+10x - 4

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andyboy88 andyboy88

17-05-2016

y = 6x^2 + 10x - 4
= 6x^2 + 12x - 2x - 4
= 6x(x + 2) - 2(x + 2)
= (6x - 2)(x + 2)

X intercepts are: -2 and 1/3

it is D

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apologiabiology apologiabiology

18-05-2016

x intercpe is when y=0

0=6x^2+10x-4
factor
0=2(3x^2+5x-2)
assume
0=3x^2+5x-2
0=(x+2)(3x-1)
set to zero
x+2=0
x=-2
3x-1=0
x=1/3

x intercepts are -2 and 1/3

D is answere

Answer Link

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