The domain is all of the real numbers as it

is defined everywhere.

The range is also all of the reals since this is a cubic with real coeficients

every equation of the form for any has at least one real root.

a "real zero", is a real number such thatwhat is "real zeros"??

yesand how do u figure the y-intercept...do u just plug 0 into all the X's?

This is how the function behaves as and . This function is a cubic so as and aswhat is the end behaviour?

Don't know what you mean here.how do we figure out the symmetry

There must be at least one turning point between each pair of adjacent rootsand the number of turning points..is it 2?

and there can be no more than turning points for a polynomial function of degree , so yes there are 2 turning points.

Depends on what you mean by approximate. I would start with them at the mid-points between consecutive roots.and how do u figure out the approximate coordinates of any local maximum points or local minimum points

RonL