Question

como se resolve essa funçao
dada a funcao f(x)=-2x+3 determine 
a f(1)
b f(0)
c f(x)=3

Answer 1

a) f(1)=-2.1+3
f(1)=1

b) f(0)=-2.0+3
f(0)=3

c) f(x)=3
3=-2x+3
3-3=-2x
0=-2x
$\frac{0}{-2}$=x
x=0