Вопрос школьника по предмету Математика
1391.
Постройте графики уравнений;
1) x+y — 3 = 0;
3) x+4y — 3 = 0;
2) 2х — у — 4 = 0; 4) 3х + y — 2 — 0;
5) x + 9 = 0:
6) Ay + 8 = 0.
Ответ учителя по предмету Математика
Ответ:
1)x+y-3+3=0+3
x+y=3
2)x+4y-3+3=0+3
x+4y=3
3)2x-y-4+4=0+4
2x-y=4
4)3x+y=2
5)x+9-9=0-9
x= -9
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