Question

Da a função f(x)= 2x -3, determine:
a) f(1)
b) f(-1)
c) f(0)
d) f(1/2)

Answer 1

Explicação passo-a-passo:

$f(x)=2x-3\\\\a)f(1)=2(1)-3=2-3\\f(1)=-1\\\\b)f(-1)=2(-1)-3=-2-3\\f(-1)=-5\\\\c)f(0)=2(0)-3=0-3\\f(0)=-3\\\\a)f(\frac{1}{2} )=2(\frac{1}{2})-3=1-3\\f(\frac{1}{2})=-2$