Question

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

0
1/3
1

Answer 1

ANSWER

y=1

EXPLANATION

If (-1, y) lies on the graph of

$y = 3^{x+1}$

then it must satisfy its equation:

We substitute x=-1 in to the equation to get:

$y = 3^{-1+1}$

$y = 3^{0}$

Any non-zero number exponent 0 is 1.

This simplifies to:

y=1

Therefore when x=-1, y=1

The third choice is correct.

Answer 2

Answer:

The correct answer option is 1

Step-by-step explanation:

We are given the following equation and we are to find the value of y when the point (-1, y) lies on the graph of the given equation:

$y = 3 ^ { x + 1 }$

So we will substitute the given value of x from the point (-1, y) in the equation to get y:

$y = 3^{-1+1}$

$y=3^0$

We know that anything with power zero is equal to 1.

Therefore, y = 1.