-1 and 1 are opposites, not decimals, and not fractions. Please mark Brainliest!!!
Answer:

Step-by-step explanation:

Answer:
going horizontally, 15, 3, 9, then 1, 3, 6, then 20, then, 40, 60
Step-by-step explanation:
You have to find the reciprocal of the gradient - 1/2
And to do that just flip the sign and fraction:
-1/2
1/2
2/1
So the answer is,
Y = 2x + 11