Larissa is standing at point L, Paige is standing at point P, and Raelynn is standing at point R on segment LR, as shown in the figure. If LP = 15 and PR = 9, find LR. Explain.

Question

Larissa is standing at point L, Paige is standing at point P, and Raelynn is standing at point R on segment LR, as shown in the figure.

If LP = 15 and PR = 9, find LR. Explain.

1. LR = 24 because 15 + 9 = 24 according to the addition property of equality. 
2. LR = 6 because LR + LP = PR according to the Segment Addition Postulate, and 6 + 9 = 15 using substitution. 
3. LR = 24 because LP + PR = LR according to the Segment Addition Postulate, and 15 + 9 = 24 using substitution. 
4. LR = 6 because 15 − 9 = 6 according to the subtraction property of equality.

Answer 1

The correct answer choice is (c).