Use Label the ordered pairs. Substitute the values into the formula. Use order of operations to simplify.

Label the points using A, B, and C. Find the 3 lengths (AB, AC, BC) between the points using the distance formula. If the lengths cannot be square rooted evenly, leave in radical form. Apply the Pythagorean Theorem (a^{2} + b^{2} = c^{2}) Substitute the two shortest lengths for "a" and "b".Substitute the longest length for "c".Simplify the equation.If the result is true, the three points make a right triangle.If the result is false, the three points do not make a right triangle.

Use mp = Label the ordered pairs (x_{1}, y_{1}) and (x_{2}, y_{2}). Substitute the values into the formula. Use order of operations to simplify.