Question

If (-1, y) lies on the graph of y = 3^x+1, then y =

Answer 1

y = 4/3

Explanation:

y = 3^x+1

Substitute -1 for x.

y = 3^(-1)+1

y = 1/3 + 1

y = 1/3 + 3/3

y = 4/3

Answer 2

If this was your equation
`y=3^x+1` then the answer is 4/3.

If this was your equation
`y=3^(x+1)` then the answer is 1.

Explanation:

It is basically asking us to replace x with -1 and find y.

If
`y=3^x+1` and we plug in -1 for x, we get
`y=3^x+1=3^(-1)+1=(1)/(3)+1=(4)/(3)` .

If
`y=3^(x+1)` and we plug in -1 for x, we get
`y=3^(x+1)=3^(-1+1)=3^0=1`.