Please help me:What's the domain?What's the range?Is it a function?
2 answers:
Answer:
Step-by-step explanation:
Just by looking at the graph vertically and horisontally, you can tell what the range and domain is, depending on whether the segments are <em>closed</em> or <em>opened</em>.
* This is a function because it passes the <em>vertical</em><em> </em><em>line test</em>.
** This is kind of like a sine wave.
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Answer:
domain: [0, 7] range: [-2,4] Step-by-step explanation:
The domain is the horizontal extent of the graph. That is from x=0 to x=7.
The range is the vertical extent of the graph. The low point appears to be near y=-2, and the high point appears to be about y=4.
The intervals can be written as ...
domain: [0, 7]
range: [-2, 4]
_____
The curve passes the "vertical line test", so IS A FUNCTION. (It does not intersect any vertical line more than once.)
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