Odpowiedzi

2010-04-09T13:25:06+02:00
A) y= 3x + b
(-3;5) 5 = (-3)*3 + b
5 = -9 + b
b = 14

y = 3x + 14


b) y = -⅔x-4 ,
y = 3/2x +b
5 = 3/2 * (-3) +b
5 = - 9/2 + b
5 + 9/2 = b
9 1/2 = b

y = 3/2x + 9 1/2