Help m. e please please

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?