Question

Dau coroana va rooog!!!

Answer 1

Răspuns:

Explicație pas cu pas:

f(x) = ax + b

E(6; -9) inseamna x = 6 si y = -9

M(-8; -10) inseamna x = -8 si y = -10

-9 = 6x + b

-10 = -8x + b

b = -9 - 6x

-10 = -8x -9 - 6x

-10 + 9 = -14x

-1 = -14x

x = 1/14 = +1/14

b = -9 - 6/14 = -9 - 3/7 = -63/7 - 3/7 = -66/7

f(x) = (+1/14)x - 66/7