Answer:
-918.55
Step-by-step explanation:
Yes it is an irrational number
You can consider the triangle (as on in the picture) and apply to it composition of two transformations:
1. reflection about the line y=x to form ΔA'B'C' and translation 1 unit right and 5 units up to form ΔA''B''C'';
2. translation 1 unit right and 5 units up to form ΔA'B'C' and reflection about the line y=x to form ΔA''B''C''.
You can see that results are different.
On added picture blue colour responds to composition of transformations 1 and red colour to composition of transformations 2.
The graph looks accurate make sure you create a table of values and clearly dot the points at (0,-3) and (2,-3).
If h=4, then 5(4)+7= 27. Using PEMDAS, do multiplication first, so 20, then add the 7.