Question

Dado a funcao F(x) A x + B, obtenha o valor de A e B, sabendo que f(2)=0 e f (3)=- 5

Answer 1

f(2)=0
f(3)=-5

f(2)=2a+b=0
f(3)=3a+b=-5


2a+b=0
3a+b=-5

-2a-b=0
3a+b=-5
________
a+0=-5
a=-5

2a+b=0
2.(-5)+b=0
-10+b=0
b=0+10
b=10


f(x)-5x+10