Greetings!
"<span>What is 1556 rounded to the nearest thousand?"...
The thousand place value number is in bold: 1556.
Since the number to the right of the bold number is 5 or greater, we round up.
1556 rounded from the thousand place value is 2000.
Hope this helps.
-Benjamin</span>
Answer: 
a=-3
b=-9
Step-by-step explanation:

wi vragE HLK2erbfww;guo rjgdjs RAK:EBF;sojEKA rfkgbnhytrq3twghdnfhgstrfghnhgre ez
Y=2x+1
x is the input, so the 2x will make it twice the input, and the +1 will make it one more, therefore y(the output) is one more than twice the input :)