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Draw a graph of a given curve in the xoy plane. Now draw a vertical line so that it cuts the graph. If the vertical line cuts the graph in more than one ordinate then given graph is not a function. If it cuts the graph at a single ordinate such a graph is a function.(is called vertical line test)
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Earn +20 ptsQ: How can you tell by looking at a graph its a function?
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Continue Learning about Calculus
How can you tell if a graph is a sine function or a cosine function?
sine graph will be formed at origine of graph and cosine graph is find on y-axise
Is a circle graph a function?
No, a circle graph is never a function.
Is the first derivative of a function is a constant then its graph is?
A line. The derivative of a function is its slope. If the slope is a constant then the graph is a line.
What does the slope tell you about a function?
If you want to find the initial value of an exponential, which point would you find on the graph?
What is a derivative graph?
A derivative graph tracks the slope of a function.
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