1/2
Divide each number by 30
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If right is supposed to be eight then answer is 81
The X-intercepts: (1,0),(-7,0)
Axis of symmetry: x= - 3
The vertex: (-3, -8)
The Y-intercept: (0, -7/2)
Concave up or down: concave up
Sketch: a poorly drawn picture on the bottom.
I hope that helps.
8pi ft
Just divide 16 by 2 because it’s half of the diameter