They can be equal if the absolute value of b is 1.
For lines to be parallel they must have the same slope. If:
y=mx+b
For any line to be parallel to the above it must also have the same value for m in that line.
Answer:
the slope is 1
Step-by-step explanation:
There are two interleaved arithmetic sequences here.
Odd terms are 5, 7, 9, 11, increasing by 2 each time.
Even terms are 1, 0, -1, decreasing by 1 each time.
The next two terms will be -2, 13.