Answer:
Step-by-step explanation:
Use the following formula:
slope: 
Let:
Plug in the corresponding numbers to the corresponding variables:
is your answer.
~
Answer:
no real answer
Step-by-step explanation:
distribute the -4 and combine all of the like terms on the left side = r-8-4r, then -8-3r
then we have 7-3r=-8-3r
from here, we can already tell that there's no real answer. this is because the two -3r will cancel, leaving no variable.
since 7 doesn't equal -8, there is no answer.
if, for example, the value on both sides of the equal sign were the same after the variable was eliminated, then your answer would be all real numbers
The third one, not sure about any other ones.
Answer: The answer is: C.
~ i hope this is correct, if not im sorry, have a gr8 day my friend!~
Step-by-step explanation:
Answer:
5x - 
= 
Step-by-step explanation:
