Will give brainliest. i need the answer as soon as possible!

When you answer this can you explain

Aline passes through 3,7 and 6,9 what equation represents the line

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