a) Cho hàm số \(y = f(x) = 2{x^2} - 3\). Tính: \(f(0)\,;\,\,\,f(2)\).
b) Vẽ đồ thị hàm số \(y = - 2x\).
A.\(a)\,\,f\left( 0 \right) = - 3\,;\,\,\,\,\,f\left( 2 \right) = - 5\)
B.\(a)\,\,f\left( 0 \right) = - 3\,;\,\,\,\,\,f\left( 2 \right) = 5\)
C.\(a)\,\,f\left( 0 \right) = 3\,;\,\,\,\,\,f\left( 2 \right) = 5\)
D.\(a)\,\,f\left( 0 \right) = 3\,;\,\,\,\,\,f\left( 2 \right) = - 5\)
b) Vẽ đồ thị hàm số \(y = - 2x\).
A.\(a)\,\,f\left( 0 \right) = - 3\,;\,\,\,\,\,f\left( 2 \right) = - 5\)
B.\(a)\,\,f\left( 0 \right) = - 3\,;\,\,\,\,\,f\left( 2 \right) = 5\)
C.\(a)\,\,f\left( 0 \right) = 3\,;\,\,\,\,\,f\left( 2 \right) = 5\)
D.\(a)\,\,f\left( 0 \right) = 3\,;\,\,\,\,\,f\left( 2 \right) = - 5\)
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Hóa Học lớp 12
