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11 January, 21:22

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

-3

2

1

-4

+3
Answers (1)
  1. 11 January, 21:44
    0
    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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