Question

Determinar o coeficiente angular, coeficiente linear e a equaçao da reta (3,1) e (-2,-8/3)

Answer 1

Oi Juninho 

f(x) = ax + b

f(3) = 3a + b = 1
f(-2) = -2a + b = -8/3 

3a + 2a = 1 + 8/3
5a = 11/3
a = 11/15 

33/15 + b = 15/15 
b = -18/15 = -6/5 

o coeficiente angular vale 11/15
o coeficiente linear vale -6/5