f(x)=x^3+x^2 -x+2

f'(x)=3x^2 + 2x -1 = (3x-1)(x+1)

f"(x)=6x + 2 =2(3x-1)

(a) give the interval(s) where the function f(x) is increasing/decreasing. Use interval notation.

(b) Identify any relative or absolute extreme points.

(c)Give the interval(s) where the graph is concave up/ concave down. Use interval notation.

(d) Identify any inflection points.

(e) Graph y=(x)