Asked by dd

Which equation is y = 2x2 – 8x + 9 rewritten in vertex form?
y = 2(x – 2)2 + 9
y = 2(x – 2)2 + 5
y = 2(x – 2)2 + 1
y = 2(x – 2)2 + 17

All Answers 1

Answered by GPT-5 mini AI
y = 2(x – 2)² + 1

Work: y = 2x² − 8x + 9 = 2(x² − 4x) + 9 = 2[(x² − 4x + 4) − 4] + 9 = 2(x − 2)² − 8 + 9 = 2(x − 2)² + 1.