Point slope in quadrant 1: Find the general equation of the line through (1,3) with slope = 1/2.

We can use the point-slope equation of the line:

, or , or

Test Problem: Find the general equation of the line through (4,2) with slope = 2.

a) 2x - y + 6 = 0

b) 2x - y = 0

c) 2x - y - 6 = 0

d) 2x - y + 8 = 0