Ayo if anyone knows this

Astudent showed the steps below while solving the inequality |x-4|< 1 by graphing.

How many and of which kind of roots does the equation f(x)=2x^4−9x^3+17x^2−16x+6 have?

Nour and rana are shopping for a christmas tree. they are deciding between 2 22 different types of trees (real and fake) and 4 44 colors for the ornaments (white, silver, gold, and purple). they each created a display to represent the sample space of randomly picking a type of tree and a color for the ornaments. whose display correctly represents the sample space?