Question

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

Answer 1

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