hey all
Im just starting computer science at uni, Whilst I can do calculas for some unknown reason I dont remember how to find the domain and range of
y=1+sqrt(x)
What I have gotten is
D: >=1
R: >=0
Just not sure if that is correct
hey all
Im just starting computer science at uni, Whilst I can do calculas for some unknown reason I dont remember how to find the domain and range of
y=1+sqrt(x)
What I have gotten is
D: >=1
R: >=0
Just not sure if that is correct
no.
the domain of $\displaystyle \sqrt{x}$ is $\displaystyle x \ge 0$. so that is the domain of your function
the range of $\displaystyle \sqrt{x}$ is $\displaystyle y \ge 0$. so, the range of $\displaystyle 1 + \sqrt{x}$ is $\displaystyle y \ge 1$
remember, the domain is the set of all input values (in this case, x-values) for our function. the range is the set of all output values (y-values) for which our function is defined.