Question

Rule: output = Input: -2 , 3 , 0.5 , 7 Output: -6 , 9 , 1.5 , 21

Answer 1

The values we have are these:

Input ....... Output

-2 ........ -6

3 ......... 9

0.5 .......... 1.5

7 ......... 21

If we multiply each of the input values by 3, we get the output values:

(-2) times 3 = -6

3 times 3 = 9

0.5 times 3 = 1.5

7 times 3 = 21

So the rule is: Output = 3 multiplied by the Input

Or y = 3x

where x is the input and y is the output