Question

Y=5^x (read as 5 to the x power) what is the value of y when x is -2

Answer 1

the answer would be 1/25 or 0.04

you first apply the exponent rule then simplify

Answer 2

`(1)/(25) = 0.04`

Explanation:

`y=5^(x)` when x = -2,

`y = 5^(-2)` ans this can also be written as:

`y = (1)/(5^(2) )`

`y = (1)/(25) = 0.04`