Find the range of the Quadratic Function f(x) = x^2 + 2x -1 if -2<x<=3.
2 answers
x=1±√7
f(x) = (x+1)^2 - 2
so the vertex is at (-1,-2)
f(3) = 14
so the range is the interval [-2,14]
so the vertex is at (-1,-2)
f(3) = 14
so the range is the interval [-2,14]
3 answers