Carlos is using a number line to add another integer to –4. he begins by showing –4 on the number line, as shown below. carlos adds the other integer on the number line and says that the sum is negative.

Carlos must add 3 and less than 3 with -4 to get the sum is negative.

Step-by-step explanation:

Carlos marked -4 on the number line.

He adds another number and gets the sum is negative.

He can start from 3 and go less than 3 to get the negative number as a result.

-4 + 3 = -1

-4 + 2 = -2

-4 + 1 = -3

and so on.

Therefore, he must add 3 and less than 3 with -4 to get the sum is negative.

Hope this will helpful.

Thank you.

answer: domain and range mean all possible values of x and y that could be substituted to the inequality. a solution means all possible values that make the inequality statement true. so while the range is still all real numbers, the solution is the shaded area, for which y will always be greater than the line of the function.