What are the slope and y-intercept of the line represented by the points shown in the table? Slope:2, y-intercept:-20
Slope:2, y-intercept:10
Slope:5, y-intercept:-20
Slope:5, y-intercept:10

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.