What is the equation of a line that is perpendicular to the line y = -3x + 2 and passes through the point (6, 8)?

Me. i can't figure out this question. give an explanation too. .

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex

Ithink i know it but i want to be sure so can you me out ?