The point r is halfway between the integers on the number line below and represents the number (use the hyphen for negative numbers and write the answer as a decimal, such as -6.4). number line from negative 10 to positive 10 in increments of 1 is shown. in between the whole numbers, there should be a tick mark. only the whole numbers are labeled. a point labeled r is placed halfway between the 3rd and 4th tick marks to the left of 0.