Question

cho hàm số y=f(x)=2x+\(\dfrac{1}{2}\)
hãy tính f(0);f(1);f\(\dfrac{1}{2}\);f(-2)

Answer 1

\(f\left(x\right)=2x+\dfrac{1}{2}\)

a) \(f\left(0\right)=2.0+\dfrac{1}{2}=0+\dfrac{1}{2}=\dfrac{1}{2}\)

b) \(f\left(\dfrac{1}{2}\right)=2.\dfrac{1}{2}+\dfrac{1}{2}=1+\dfrac{1}{2}=\dfrac{3}{2}\)

c) \(f\left(-2\right)=2.\left(-2\right)+\dfrac{1}{2}=-4+\dfrac{1}{2}=\dfrac{-7}{2}\)

Answer 2

a)

b)

c)