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#1 2019-08-01 14:22:52
- Hannibal lecter
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- Registered: 2016-02-11
- Posts: 392
how to determine any range of a function without draw graph?
how to determine any range of a function without draw graph? on pen and paper mathematically
help me please.. I'm every beginner
for example like y= square root of ( x+4 )
Wisdom is a tree which grows in the heart and fruits on the tongue
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#2 2019-08-01 19:55:45
- Bob
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- Registered: 2010-06-20
- Posts: 10,640
Re: how to determine any range of a function without draw graph?
Domain:The function under the root sign must not be negative so:
Range: If the amount being rooted is 0 or positive then any value from 0 upwards is possible so
Bob
Children are not defined by school ...........The Fonz
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you! …………….Bob 
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