Question 37785
sketch the graph of y=2sqrt(x). Give the domain and range.

Plot some points:
Let x=0 then y=0
Let x=4 then y=2*2=4
Let x=9 then y=2*3=6
Connect the points.
Domain is all non-negative real numbers.
Range is all non-negative real numbers.

Cheers,
Stan H.