On a coordinate grid, a lighthouse is located at (10, 70) and a sailboat is located at (80, 20). if the units on the grid represent yards, what is the direct distance between the lighthouse and the sailboat to the nearest yard?

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.