Determine whether the figure is a right triangle. a right triangle contains one 90 degree angle. justify your answer with slopes. ( question 16)

If the slopes of two lines are opposite reciprocals of each other, then the lines are perpendicular. This means the angles formed are 90°. To prove this triangle is a right triangle, the opposite and adjacent side must have opposite reciprocal slopes.

Opposite Side:


Adjacent Side:


Since their slopes are not opposite reciprocals, we know that this is not a right triangle.

Iknow one of the answers is a and maybe b but not 100% sure about b

The first one is correct