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For what interval does this quadratic inequality hold ture? x^2−4x−4≤28
A.[2,6]
B. [4,8]
C. [1,2]
D. [2,6]
E. [0,4]
 one year ago
 one year ago
Can someone check my answer For what interval does this quadratic inequality hold ture? x^2−4x−4≤28 A.[2,6] B. [4,8] C. [1,2] D. [2,6] E. [0,4]
 one year ago
 one year ago

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MeowKateBest ResponseYou've already chosen the best response.0
solve x^2  4x  32 <=0 for x (x 8)(x + 4) <= 0 between x = 4 and x = 8, the inequality is true for x < 4, the left side exceeds 28 for x > 8, the left side exceeds 28
 one year ago

viniterranovaBest ResponseYou've already chosen the best response.0
The interval is 4<=x<=8
 one year ago

viniterranovaBest ResponseYou've already chosen the best response.0
dw:1361409569193:dw
 one year ago

viniterranovaBest ResponseYou've already chosen the best response.0
Plug the numbers of the interval betwenn 4<=x<=8 in the equation above.
 one year ago

DirectrixBest ResponseYou've already chosen the best response.0
@MeowKate > will it be b? CORRECT
 one year ago

viniterranovaBest ResponseYou've already chosen the best response.0
The option "B" is the correct one.
 one year ago
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