Question

Question #57fbb

Answer 1

`y=2sqrt(x)` is only half of the graph of `y^2=4x`

Explanation:

By convention, The square root symbol (`sqrt`) is used to indicate (only) the primary (positive) root.

Here is the graph for `y=2sqrt(x)`
graph{2sqrt(x) [-10, 10, -5, 5]}

and here is the graph for `y^2=4x` (note that it is not a function)
graph{y^2=4x [-10, 10, -5, 5]}