Tim and Reeva want to find out if the triangle formed by connecting the points M, N, and O is a right triangle.

Tim’s plan:
• Find the slopes of the three sides.
• See if any two slopes are the same.

Reeva’s plan:
• Use the distance formula to find the lengths of the sides.
• Then see if the side lengths satisfy the equation a2 + b2 = c2 to see if it is a right triangle.

Which student’s plan will work?