The same rule is used on each of these number column A to get the numbers in Column B.
COlumn A B
-3 -5
0 1
3 3
6 13
Which could be the rule?
Multiply by 2, then add 1
add 1
Subtract 2
Multiply by 3, then add 4
I picked that last one, But I know I am wrong. Help?
except for
3 3
they are all multiply by 2, add 1
I bet 3 3 should be 3 7
oops! You are right it was suppose to be 3 7 sorry and big thanks!
You are welcome.
To determine the rule used to get the numbers in Column B from Column A, we need to analyze the patterns between the numbers. Let's compare the values in Column A to the corresponding values in Column B:
- From -3 to -5, there is a difference of -2.
- From 0 to 1, there is a difference of 1.
- From 3 to 3, there is no difference.
- From 6 to 13, there is a difference of 7.
By comparing these differences, we can find a pattern:
- The first three differences are -2, 1, and 0. There is no clear relationship between these numbers.
- However, the difference of 7 between 6 and 13 is three times the previous difference of 1.
Based on this pattern, we can deduce that the rule used is likely "Multiply by 3, then add 1." Let's test this rule against the other numbers in Column A:
- (-3 * 3) + 1 = -8 (not -5)
- (0 * 3) + 1 = 1
- (3 * 3) + 1 = 10 (not 3)
- (6 * 3) + 1 = 19 (not 13)
As we can see, the rule "Multiply by 3, then add 1" does not produce the numbers in Column B accurately. Therefore, the correct answer is not the last option provided.
To determine the correct rule, let's go through the remaining options:
- "Multiply by 2, then add 1":
- (-3 * 2) + 1 = -5 (matches the number in Column B)
- (0 * 2) + 1 = 1
- (3 * 2) + 1 = 7 (not 3)
- (6 * 2) + 1 = 13
By testing this rule against all the numbers in Column A, we can see that it accurately produces the corresponding numbers in Column B. Hence, the correct rule is "Multiply by 2, then add 1."