Question

A graph crosses the x–axis at (–1, 0) and (3, 0), and its vertex is at (1, 4). Which quadratic function does it correspond to?

Answer 1

What is the quadratic standard form?

Answer 2

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A graph crosses the x–axis at (–1, 0) and (3, 0), and its vertex is at (1, 4). Which quadratic function does it correspond to?

f(x) = –x2 + 2x – 3

g(x) = x2 + 2x + 3

h(x) = –x2 – 2x – 4

i(x) = –x2 + 2x + 3