Question

a cho hàm số y=f(x)=1-3x mũ 2 . tính f (0);f(-1/3)

b Vẽ đồ thị hàm số y=2x

Answer 1

a: f(0)=1

\(f\left(-\dfrac{1}{3}\right)=1-3\cdot\left(-\dfrac{1}{3}\right)^2=1-3\cdot\dfrac{1}{9}=1-\dfrac{1}{3}=\dfrac{2}{3}\)

Answer 2

a: f(0)=1

\(f\left(-\dfrac{1}{3}\right)=1-3\cdot\left(-\dfrac{1}{3}\right)^2=1-3\cdot\dfrac{1}{9}=1-\dfrac{1}{3}=\dfrac{2}{3}\)