11.5 Square Root Functions
A square-root function contains a variable
under a square-root sign
Find the domain and graph the function:
y = x
x
y
Domain:
y = x +2
x
Domain:
y
y = x +2
x
y
Domain:
Find the domain of each square-root function:
y = 2x - 1
y = 3x + 5
Find the domain of the function.
Then graph the function.
f(x) =
1
2
x+4