No, it isn't true if x is less than 0Originally Posted bybobby77

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- Jul 18th 2006, 10:41 AM #1

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## plz help

1>Is sqrt(x^2)=x an identity (true for all values of x)?

2> For the equation x-sqrt(x)=0 , perform the following:

a) Solve for all values of x that satisfies the equation.

b) Graph the functions and on the same graph (by plotting points if necessary). Show the points of intersection of these two graphs.

c) How does the graph relate to part a?

- Jul 18th 2006, 10:53 AM #2

- Jul 18th 2006, 11:12 AM #3Originally Posted by
**bobby77**

Originally Posted by**bobby77**

Thus: . Therefore x = 0 or x = 1.

Originally Posted by**bobby77**

Bye

EB

- Jul 18th 2006, 11:33 AM #4

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