The table represents some points on the graph of a linear function. х
y
-2
12
0
3
3
-10.5
7.
-28.5
What is the rate of change of y with respect to x for this function?

The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron. the pyraminx shown below has edges 15\,\text{cm}15cm long and vertical height h=12.2\,\text{cm}h=12.2cm. the triangle drawn with dashed lines is a right triangle. what is the distance rr? round your answer to the nearest tenth.