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Algebra

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This will be a multiple post thing so please bear with me. If my answers are wrong then please explain I'll post my work as needed thanks.

1)Identify the y-intercept and the axis of symemetry for the graph of f(x)=-3x^2+6x+12.
answer=12:x=1

2)Determine whether f(x)=-5x^2-10x+6 has a maximum or minimum value and find that value.
answer=maximum -1

3)Solve x^2=4x by graphing and indicate the roots.
answer=0,4

4)Solve x^2+2x=-2 by graphing and indicate the roots.
answer=-1,1

5)Solve by factoring:x^2-3x=28
answer=-4,7

1)Identify the y-intercept and the axis of symemetry for the graph of f(x)=-3x^2+6x+12.
answer=12:x=1

2)Determine whether f(x)=-5x^2-10x+6 has a maximum or minimum value and find that value.
answer=maximum -1

3)Solve x^2=4x by graphing and indicate the roots.
answer=0,4

4)Solve x^2+2x=-2 by graphing and indicate the roots.
answer=-1,1

5)Solve by factoring:x^2-3x=28
answer=-4,7

  • Algebra -

    4+3x<28

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