The graph of the equation y = x2 + 1 is shown. Which equation will shift the graph up 7 units?

A) y = x2 + 7

B) y = x2 - 8

C) y = x2 + 8

D) y = (x+7) 2

Twice the sum of x and y decreased by 21

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A plane intersects a prism to form a cross section that is a polygon with five sides. The minimum number of sides that the polygon at the base of the prism must have ls ...