Question

For the function y=-2x^2+4x+1, what are the coordinates of the vertex? Is it a maximum or minimum point? Show all work to earn full credit. (4 points)

Answer 1

Vertex: (1,3)

Maximum

Explanation:

y = -2x² + 4x + 1

y = -2(x² - 2x) + 1

y = -2(x² - 2(x)(1) +1² - 1²) + 1

y = -2(x - 1)² + 3

Vertex: (1,3)

Maximum