составьте уравнение прямой АВ,если А(1,-2) и В(2,1).. Created by freshfff. algebra-ru

У=кх+b - общий вид прямой.А(1; -2)х=1 у= -2-2=к*1+b-2=k+bB(2; 1)x=2 y=11=k*2+b1=2k+b{k+b= -2{2k+b= 1b= -2-k2k+(-2-k)=12k-2-k=1k=1+2k=3b= -2-3b= -5y=3x-5 - уравнение прямой. sherbakova2010 sherbakova2010 У=3x-5.Решается системой.Нужно подставить х и y в уравнение прямой y=kx+b, где координата точки имеет вид (x;y) Новые вопросы в Алгебра Решите уравнения 10x+2x²=0 1/7x²+6/7=0 15-5x²=0 4,9x²=0 помогите!!!!ааааааааа 10√5-√500+√2500 помогите умоляю Знайти два послідовних натуральних числа, якщо їх сума на 181 менша від їх добутку. D(у) позначають?.... как читается запись《3 в 4 степени=81》?? Які з даних записів задають функцію? Укажіть для них незалежну змінну (аргумент) та залежну змінну: 1 1) а = 5b – 7; 2) 7 + 2x = 2x - 3; 3) y = 5х - … 7 4) 20 : 5 - 4 = 0; 5) p = t2 +t – 5; 6) 2a - 5 > 3. h 2. Розв'яжіть, способом підстановки (3x-2y=4, 4х+у=-6? Срочно помогите пожалуйста. Мне никто не помогает (. Сделать 1 вариант желательно на листочке найдите значиние вырожения (3:5) в 3 степени Предыдущий Следующий Вместе мы знаем больше Этот сайт использует cookies Политика Cookies . Вы можете указать условия хранения и доступ к cookies в своем браузере. 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составьте уравнение прямой АВ,если А(1,-2) и В(2,1)...

freshfff @freshfff

March 2022 1 35 Report

составьте уравнение прямой АВ,если А(1,-2) и В(2,1).

Answers & Comments

m11m У=кх+b - общий вид прямой.

А(1; -2)
х=1 у= -2
-2=к*1+b
-2=k+b

B(2; 1)
x=2 y=1
1=k*2+b
1=2k+b

{k+b= -2
{2k+b= 1

b= -2-k
2k+(-2-k)=1
2k-2-k=1
k=1+2
k=3
b= -2-3
b= -5

y=3x-5 - уравнение прямой.