cacevri3lli cacevri3lli

18-05-2016
Mathematics

contestada

Jean needs to graph the function below
y= 7x^2 + 8x - 6
How many time should the graph of this function intersect at the x-axis?

A. 3
B. 2
C. 1
D. 0

Respuesta :

18-05-2016

Hello,

Δ=8²-4*7*(-6)=232>0 thus 2 roots
Answer B

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