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stepladder [879]
2 years ago
15

State the domain and range and determine if it's a function?

Mathematics
1 answer:
pishuonlain [190]2 years ago
4 0

if we do a <u>vertical line test</u> on that graph, we'll find that a vertical line will pass by and hit the line only once on its way down, only once meaning the graph is the graph of a function.

<h2>Range</h2>

well, is really how high and low it goes or namely over the y-axis.

well, it goes up up up to 3 then U-turns and back down it goes, now the graph has arrowheads, meaning the graph keeps on going towards infinity, vertically as well as horizontally since it's a parabola, so the range will be

<h2>[3 , +∞)</h2>

<h2>Domain</h2>

well, is simply how left and right it goes or namely over the x-axis.

judging from the arrowheads it moves from infinity to infinity, so

<h2>(-∞ , +∞).</h2>
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