The Pythagorean distance is sqrt[(4 - 7)2 + (7 - 8)2] = sqrt[9 + 1] = sqrt(10) = 3.162 approx.
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(-3-(-6))2 + (7-4)2 = 18 and the square root of this is the distance between the two points
The distance between the points of (4, 3) and (0, 3) is 4 units
Using the distance formula from (3, 1) to (7, 1) is 4 units
The distance works out as 22 between the points of (15, -17) and (-7, -17)
To find the distance between two points (x0, y0) and (x1, y1) use Pythagoras: distance = √(change_in_x² + change_in_y²) → distance = √((x1 - x0)² + (y1 - y0)²) → distance = √((8 - -7)² + (-5 - -13)²) → distance = √(15² + 8²) → distance = √289 → distance = 17 units.