The document contains examples of algebraic expressions and equations. Some expressions are set equal to numbers to form equations. Steps are shown to solve equations for unknown variables by isolating them on one side of the equal sign.
31. A = (−3, 4) B = (5, 1)
y −y 1−4 −3
m= = =
x −x 5 − (−3) 8
y = mx + b
3
y=− x+b
8
b y
A (−3, 4) −3
4 B
b
(−3)(−3)
4= +b
8
9
4= +b
8
b=4−8=
9 23
b
8
3 23
y=− x+
8 8
a b
+ =1
a b
b "
" "
y=− x+ =0 =
=0
3 23
y=− x+
8 8
42. - Los abogados poseen conocimientos jurídicos si y solo si estudian leyes.
- Las obstetrices atienden partos o los farmacéuticos conocen de medicamentos.