Determine which of the lines, if any, are parallel. Explain. Line a passes through (-1. – 2) and (1.0).
Line b passes through (4.2) and (2. – 2).
Line c passes through (0.2) and (-1.1).

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.