Question

caucule as funçoes afins e esboce o grafico:
a) f (x)= -3x+2
b) f (x)= 3x
c) f (x) = 2x + 1

Answer 1

a) f(x) = -3x +2 
-3x = -2 
x = $\frac{-2}{-3} = \frac{2}{3}$

b)  f(x) = 3x 
3x = 0 
x = 0 

c) f(x) = 2x +1 
2x+1 = 0 
2x = -1 
x = $\frac{-1}{2}$