The product of -17 and a number increased by 9

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

What are the coordinates of the hole in the graph of the function f(x) ? f(x)=x2−9x−3 enter your answer in the boxes.

The graph of h(x)= |x-10| +6 is shown. on which interval is this graph increasing