Question

Which function has the same domain as y=2^x?

a) y= √2x
b) y= 2^2x
c) y= √x-2
d) y= -2

Answer 1

The function that has the same domain as y=2^x is y=√x-2.

Step-by-step explanation:

The function that has the same domain as y=2^x is y=√x-2 (c). The domain of y=2^x is all real numbers, which means that x can take any value. Similarly, the square root function √x also has a domain of all real numbers. Therefore, these two functions have the same domain.