Answer:
The answer would be r=8
Step-by-step explanation:
You would have to set the equation equal to zero. r-8=0. Now you need to get the -8 to the other side of the equal sign. So you would add 8 to both sides to cancel the 8 out on the left side and 8 to the zero on the other side to get your answer
Answer:
A function is an expression in terms of a variable, usually x. Hence, that is not a function.
Step-by-step explanation:
What you have there are four sets of coordinates.
Sorry but that's an unclear question, can you double check to see if you included everything, and also check to see the possible answers?
