(a) 4, ·b) [tex]\frac{3}{4}[/tex], (c) [tex]\frac{1}{2}[/tex], (d) [tex]\frac{4}{3}[/tex]
using the slope m of a line = tanΘ = (difference in vertical )/(difference in horizontal ) between 2 points on the line
using the endpoints of each line, then
(a) tan Θ = [tex]\frac{4}{1}[/tex] = 4
(b) tan Θ = [tex]\frac{3}{4}[/tex]
(c) tan Θ = [tex]\frac{2}{4}[/tex] = [tex]\frac{1}{2}[/tex]
(d) tan Θ = [tex]\frac{4}{3}[/tex]
