Question

determine a função afim f(x)=ax+b sabendo que f(2)=105 e f(-6)= -14

Answer 1

2a+b=105

-6a+b=-14 x(-1)

2a+b=105

6a-b=14
8a=119
a=119/8

2.119/8+b=105

238+8b=840

8b=840-238

b=602/8

b=301/4

f(x)=119/8x+301/4