Please help kinda confused

What is the y-intercept of the graph of the equation y=3(2^x)

Apolynomial function has a root of –6 with multiplicity 1, a root of –2 with multiplicity 3, a root of 0 with multiplicity 2, and a root of 4 with multiplicity 3. if the function has a positive leading coefficient and is of odd degree, which statement about the graph is true?

Aline that intersects one of two parallel lines intersects the other also always sometimes never