Trong mặt phẳng Oxy, phép tịnh tiến theo vecto v a   ( ;b) biến đường thẳng d x y 1 : 0   thành
d x y 1 ': 4 0    và d x y 2 : 2 0    thành d x y 2 ': 8 0    . Tính m = a + b

the image of (6, 9) under a dilation is (4, 6). the scale factor is

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

step-by-step explanation:

formula

x = x1 + p/w(x2 - x1)

let the line segment ab with a(x1,y1) and b(x2,y2)

a point(x,y) divide ab in the ratio, 2: 3 the x coordinate can be written as

x = x1 + p/w(x2 - x1)

here p=2 and w = 2+3

therefore,

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

similarly y coordinate y = y1 + 2/5(y2 - y1)

i think the answer is c sorry if it's wrong

answer: b f g .

step-by-step explanation: