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Bbi TChii
3 ngày trước

cho các hàm số bậc nhất y =2x - 3 và y = ax +b có đồ thị lần lượt là các đường thẳng d1 và d2. a) vẽ đồ thị của hàm số y = 2x - 3

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Thảo Phạm
3 ngày trước

a, Vẽ đths `y=2x-3`

Với `x=0 ⇒ y=-3`

Với `y=0 ⇒ x=3/2`

Vậy `2` điểm `A(0;-3)` và `B(3/2;0)` thuộc đths `y=2x-3`

tranthituyet0805197
3 ngày trước

a, Vẽ đồ thị hàm số $y=2x-3$ 

Cho $x=0⇒y=-3$

        $y=0⇒x=1,5$

Đồ thị hàm số $y=2x-3$ là $1$ đường thẳng đi qua $2$ điểm $(0,-3)$ và $(1,5;0)$

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