Question

Which equation can be used to find the solution of (1/4)^y+1=64?

−y−1=3


y + 1 = 3


−y+1=3


y−1=3

Answer 1

-y-1=3

Explanation:

took the test and got it correct

Answer 2

−y−1=3

Explanation:

Which equation can be used to find the solution of (1/4)^y+1=64?

This can be solved by power of indices

(1/4)^(y+1)=64

(4^-1)^(y + 1)= 4^3

Note

(x^a)^b = x^ab

Hence:

4^(-1)(y + 1)= 4^3

4^-y - 1 = 4^3

Divide both sides by 4

−y−1=3

Hence, the equation that can be used to find the solution of (1/4)^y+1=64 is

−y−1=3