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beckbrumfil
USA Joined: Apr 18, 2008 Posts: 11 Status: Offline 
a) Y= square root x2, fill in the following table for x = 0,1,2,3,4. Round to three decimal places where necessary. x y 0 1 2 3 4 b) Explain why no negative values are chosen as values to substitute in for x. 


beckbrumfil
USA Joined: Apr 18, 2008 Posts: 11 Status: Offline 
okay I finally figured this out after many hours studying. If y=sqrt of x2 , fill in the following table for x = 0,1,2,3,4. Round to three decimal places where necessary. x y 0 0 y=?02=02=0, 1 1 y=?12=12=1 2 1.41 y=?22=22=1.41 3 1.73 y=?32=32=1.73 4 2 y=?442=2 Explain why no negative values are chosen as values to substitute in for x. Answer: Because when graphing a square root equation such as y=x, only values x are greater that 0, can be substituted in for x, can be used, because the square root of a negative number is not real. Now just put your xand y values in the excel, highlight them and insert scatter chart x&y. draw your line and add gridlines, and you are done. 


shujaat

y=sqrt of(2),x=0 y=sqrt of(1),x=1 y=0,x=2 y=1,x=3 y=sqrt of(2),x=4 for x=0,1 value of y is a comlex no. 


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