Question

А(0;4)иВ (-6;1);составьте уравнение прямой

Answer 1

A(0; 4) = A(x1; y1)
B( - 6; 1) = B(x2; y2)

(x - x1)/(x2 - x1) = (y - y1)/(y2 - y1)

(x - 0)/(- 6 - 0) = (y - 4)/(1 - 4)
x / (-6) = (y - 4)/(-3)
x/6 = (y - 4)/3
6(y - 4) = 3x
y - 4 = 3x/6
y = 0,5x + 4