please help!! 20 points. if u guess or comment just to take points away i will make sure ur account gets banned, thanks ! i want a simple explanation.:)

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

The length of each stair is 11 inches. what is the rise, r, for each stair? round to the nearest inch. 2 inches 7 inches 17 inches 24 inches

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?