Предмет: Алгебра, автор: ddcssc

3.63. M, (x;; у) және М, (х2; у.) екі нүктесі арқылы өтетін сызыктык
функцияны формуламен жазындар. Осы формуланы пайдаланып, келесi
нүктелер арқылы өтетін түзу тендеуiн жазындар:
1) A (2; 0) және В (0; 3); 2) P (-1; -4) және Q (2; 2).

Приложения:

Ответы

Автор ответа: axatar
1

Ответ  и Объяснение:

Перевод: Напишите уравнение прямой, проходящей через точки M₁(x₁;y₁) и M(x₂;y₂). Используя эту формулу, напишите уравнение прямой, проходящей через следующие точки:

1) A(2;0) и В(0;3); 2) P(-1;-4) и Q(2;2).

Решение. Формула уравнения прямой, проходящей через две заданные точки M₁(x₁;y₁) и M(x₂;y₂), имеет следующий вид:

(x₂-x₁)·(y-y₁) = (y₂-y₁)·(x-x₁).

Применим эту формулу.

1) A(2;0) и В(0;3), то есть x₁ = 2, y₁ = 0 и x₂ = 0, y₂ = 3:

(0-2)·(y-0) = (3-0)·(x-2)

-2·y = 3·(x-2)

y = -1,5·x+3.

2) P(-1;-4) и В(2;2), то есть x₁ = -1, y₁ = -4 и x₂ = 2, y₂ = 2:

(2-(-1))·(y-(-4)) = (2-(-4))·(x-(-1))

3·(y+4) = 6·(x+1)

y+4 = 2·x+2

y = 2·x-2.

#SPJ1

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