Answer:

Step-by-step explanation:
When you have something like that, just think that the first number goes on top and the second number goes on bottom.
Answer:
third one is a required answer.
x =2y
or
1/x=y
A constant is any number, anywhere on the number line.
A variable is an unknown, x y z n etc
Answer:
should be 0.28125
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
vertical line through x at one
vertical lines have undefined slopes
can take two points to verify (1,1) (1,2) m=<u> 2-1</u>
1-1
<u> 1 </u>
0 undefined zero in denominator