Let f: Z→Z be a group homomorphism such that f is one-to-one, then which of the following statements is true: Select one: O a. |Ker(f)| =0. O b.Z/ Im(f)=Z. O cf is also onto. O d. All the above.

Equations and inequalities describe the relationship between two mathematical expressions.

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.