What is the value of the function y=3x−1 when x=−1 ? −8 −4 2 6

Option B is correct

Value of the function when x =-1 is -4

Step-by-step explanation:

Given the function:          ......[1]

Here, x is the input value and y is the output value.

Substitute the input value of x = -1 in [1]

⇒  

⇒  

Therefore, the value of the function when x = -1 is -4