Question

What is the domain of the function y equals 2 square root of


`y = 2 √(5 x - 5 )`

Answer 1

Domain: x>=1

Explanation:

what values of x make it work (square roots must be greater than or equal to zero)

sqrt (5x-5) >=0

square each side

5x-5 >=0

add 5 to each side

5x>=5

divide by 5 on each side

5x/5 >=5/5

x >=1