8 1 Additional Practice Answers

Question: If the vertex of a parabola is (0, 3), what is the axis of symmetry?

Answer: x = 0

Question: If the vertex of a parabola is (-4, 0), what is the axis of symmetry?

Answer: x = -4

Question: Which graph is the narrowest?

y=-3x², y=-5x², y=-1x²

Answer: y=-5x²

Question: Which graph is the widest?

y=-3x², y=-5x², y=-1x²

Answer: y= -x²

Question: Which graph is the narrowest?

y=4x², y=-2x², y=-6x²

Answer: y=-6x²

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