4 units right and 4 units down
There are total 10 right angles in the given diagram, hence option (b) is correct match.
<em>Refer the attached image for clarification. </em>

Answer:
x = -9
Step-by-step explanation:
Normally 18/2 is 9, but since we’re dividing by a negative, the 9 becomes negative.
So 18/-2 is -9.
The graph is all the solutions to the equation bthat statement is true
the point ,(1,2) does lie on the graph
the other 2 are false