What was the main thing traded on the silk road? A. Silk

B. Culture

C. Spices

D. Gold

Help me answer these math questions plzzz
1. When a function is called f(x), the x is also known as the is ___ of the function.
A. Range
B. Output
C. Domain
D. Degree

2. When a is called f(x), the output is also known as the ___ of the function.
A. Output
B. Name
C. Range
D. Domain

3. The output of the function is known as the ___?
A. Y value
B. X value
C. Input

4. What is the proper function notation for the following linear equation y=2 x +6
A. y= 2x +6
B. f(y)= 2x +6
C. f(x)= 2x +6

B. would complete your answer. give me brainliest!