Question

The table shown below represents a function. Which of the following values could not be used to complete the table?

Answer 1

x|y
-10|5
-25|10
-5|15
?|20

Answer 2

@Vocaloid

Answer 3

In order to be a function, each x-value can only be assigned to one y-value

Because x = -10 is already assigned to y = 5, x = -10 cannot be assigned to y = 20 and therefore can’t be the missing number

Same logic with x = -25 and x = -5

Answer 4

Therefore, since it’s asking which possible values cannot be assigned to the missing value, your solution is either x = -10, -25 or x = -5