Ánh xạ f nào sau đây không là ánh xạ tuyến tính a. f(x₁,x₂) = (x₁,x₂)

b. f(x₁,x₂) = (0,0)
c. f(x₁,x₂) = (x₂,x₁)
d. f(x₁,x₂) = (1,2)

7

step-by-step explanation:

yuo ned the activity or vertical angle of the form of 1,7 but 2,2 has a c4,2 as it verticie so i not have a car

it has the same slope and a different y-intercept

hope this : )

step-by-step explanation:

what does 'mandy have ben 780 bottle caps. ' mean?