Question

The equations of three lines are given below.

Line 1: 3y =2x+7

Line 2: y=2/3x - 8

Line 3: 6x-4y=6
For each pair of lines determine weather they are parallel, perpendicular, or neither.
Line 1 and Line 2:
Line 1 and Line 3:
Line 2 and Line 3:

Answer 1

Solve for y for the second equation: y = 2/3x + 1

Both equations will cross the y axis at +1, but one will have a slope of 2/3, and one will be -2/3 slope.

A perpindicular line has the negative reciprocal of the slope, not just the negative.