Which expression will give the new price of a $15 item marked up by 28% a. 28+0.15 x 28 b. 28-0.15 x 28 c. 15+0.28 x 15 d. 15-0.28 x 15

For the given quadratic equation convert into vertex form, find the vertex and find the value for x=6 y=-2x^2+2x+2

Consider the table below. x y -1 -5 0 5 1 11 2 13 3 11 complete the standard form equation representing the quadratic relationship displayed above, where a, b, and c are constants.

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