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KillBuFF247
4 tháng trước

Bài `1` : Vẽ đồ thị hàm số của `y=1/4x ²` và `y=2x-3` trên cùng `1` mặt phẳng tọa độ `Oxy`

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tuongha97
4 tháng trước

Giải thích các bước giải:

$\frac{1}{4}$ x² = 2x - 3 

⇔ $\frac{1}{4}$x² - 2x + 3 = 0

⇔ \(\left[ \begin{array}{l}x_{1} =6\\x_{2}=2\end{array} \right.\) 

⇔ $\left \{ {{x_{1}= 6 ⇒ y_{1} = 9} \atop {x_{2}=2 ⇒ y_{2}= 1}} \right.$ 

Tự vẽ đồ thị Oxy nhé

Xin CTLHN cho nhóm

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