Предмет: Алгебра, автор: viktoryaschmyr

Пряма у = кх + b проходить через точки C (-3; -11) і D (1,5; -2). Знайдіть значення к і b.Помогите пожалуйста очень надо

Ответы

Автор ответа: русская25
0
Решаем систему из двух уравнений:
{-3k+b= -11 |*(-1)
{1,5k+b = -2

{3k - b = 11
{1,5k+b = -2

4,5k= 9
k= 2

Подставляешь в любое из уравнений и находишь значение b. Например,
1,5k+b = -2
1,5*2 + b = -2
3 + b = -2
b= -5

Тогда,прямая имеет вид:
y= 2x - 5
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Choose the correct word for every definition. Three words are extra: wildlife, litte,r spread, rare, occupy, shortage,
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2) The act or process of destroying something or of being destroyed. _____________
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