1₁ : [x, y, z]=[7,2,-6] + k[2,1,−3], k = R 1₂:[x, y, z] [3,9,13]+[1,5,5, ],t = R

Determine whether (-7,4), (6, -2), (0, -15) are the vertices of a right triangle.

The blue line is a called a line. The red line is called a line.

A line passes through the points (10,16) and (15, 24). Can the relationship be modeled by a graph of direct variation? Explain in complete sentences how you arrived at your answer. Use complete sentences.