Question

What is the value of the function y=3x−1 when x=−1 ?

−8
−4
2
6

Answer 1

Substitute x for -1 in  y=3x-1
y = (3) (-1) -1
Solve
y = (3) (-1) -1
y = -3 - 1
y = -4

 B.) -4 is your answer

Answer 2

Answer:

Option B is correct

Value of the function $y =3x-1$ when x =-1 is -4

Step-by-step explanation:

Given the function: $y =3x-1$          ......[1]

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

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

$y =3(-1)-1$  

⇒$y =-3-1$  

⇒$y =-4$  

Therefore, the value of the function $y =3x-1$ when x = -1 is -4