Algebra II

Need help please. Thank you.

1. Determine whether the function has a maximum or minimum. State that value.
f(x)= -2x^2-4x
2. Determine what c would in order to complete the square.
x^2-5x+c
3. Solve the quadratic by factoring.
3x^2-16x+5=0
4. Solve the quadratic by factoring.
x^2+x-48=0
5. Describe the transformation if f(x)=1/3(x+2)^2+5

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  1. #1. x^2 has negative coefficient. downward
    #2. (5/2)^2
    #3. hint: 15+1 = 16
    #4. does not factor. Did you mean +2x?
    #5. shift left 2, scale vertically by 1/3, shift up 5

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  2. Thanks, Steve! Yes on #4 its suppose to be +2x so my bad.

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