Eleargoryl2op Eleargoryl2op

29-05-2016
Mathematics

contestada

What is the y-intercept of the graph of y= -4x^2+8x-3?
-3
2
1
-4

Respuesta :

29-05-2016

Hello,

-4x²+8x-3=0
==>4x²-8x+3=0
Δ=8²-4*3*4=64-48=16
==>(x=(8-4)/2=2) or (x=(8+4)/2=6)

Answer B: 2

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