What is the distance on a Cartesian coordinate plane from (1, -1) to (7, 7)?
Using the distance formula, we get that the distance is 
 sqrt( (1-7)^2 + (-1-7)^2) = sqrt(36+64) = sqrt(100) = 10.

Complete the following task based on the instruction and optional input provided.### Instruction:
What is the distance on a Cartesian coordinate plane from (1, -1) to (7, 7)?

### Output:
Using the distance formula, we get that the distance is 
 sqrt( (1-7)^2 + (-1-7)^2) = sqrt(36+64) = sqrt(100) = 10.
