Question

y = log x
If y = 10, then what is x?

Answer 1

is that log to the base 10?

Answer 2

if so then x = 10^10

Answer 3

what they are asking is for 10=log(x) what does x equal. Do you know how to get rid of the log so you just have x on one side?

Answer 4

so it'll give us
y = log x
10 = log x
10 = 10^x

Answer 5

and x=1 ?

Answer 6

the logarithm of y is defined as the exponent that the base has to be taken to equal y

Answer 7

so if y = log2 100

then 100 = 2^y

Answer 8

seems easy now ! :)