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VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Mathematical Methods CAS => Topic started by: hyperblade01 on August 17, 2009, 04:38:09 pm

Title: Simple Range Question
Post by: hyperblade01 on August 17, 2009, 04:38:09 pm: Had a mental block:

Three different graphs, all with domain $x \ge 0$ . What are their ranges?

$y = 500$
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$y = 500e^{x}$

$[500,\infty)$ ?
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$y = 500e^{-x}$

$(0,500]$ ?
Title: Re: Simple Range Question
Post by: Flaming_Arrow on August 17, 2009, 04:41:22 pm: Range is just 500 for y= 500?

the rest are right
Title: Re: Simple Range Question
Post by: hyperblade01 on August 17, 2009, 05:57:51 pm: Now that I think of it, the 2nd and 3rd is obviously what it is, dunno what hit me..

The first one, I'm curious as to how to write it out

$\{y: y=500\}$ ?