Answer:

Step-by-step explanation:


The equation would just be x=8 since the x of both points is 8.
the assumption being that "x" is a plain variable whilst "y" is a function, that matters because the chain rule would be needed for a function, not so for a plain variable.

now, we know that y(5) = -23, which is another way of saying that when x = 5, y = -23, but we already knew that, we can get that by simply plugging it into the equation hmmm y'(5), well

Answer:
2
-4
0
Step-by-step explanation:
Just did it