Use the vertex and intercepts to sketch the graph of the equation. Give the equation for the parabola's axis of symmetry.x = y2 - 8y + 21
A. Axis of symmetry is y = -4.
B. Axis of symmetry is y = 4.
C. Axis of symmetry is x = 4.
D. Axis of symmetry is x = -4.
Answer: B
Mathematics
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