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Verticle line test man. If it intersects two points it is its not a function. if it hits one point it is a function. and im currently looking up to see how it is a equation...

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Q: Without using a graph how can you tell if an equation is a function or relation?
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Related questions

How do you determine if a relation represents a function?

If the function is a straight line equation that passes through the graph once, then that's a function, anything on a graph is a relation!


How can you determine that a set of ordered pairs are a graph table diagram equation a function or mere relation?

In general you cannot. Any set of ordered pairs can be a graph, a table, a diagram or relation. Any set of ordered pairs that is one-to-one or many-to-one can be an equation, function.


Which of these data sets represents a function?

Does the graph above show a relation, a function, both a relation and a function, or neither a relation nor a function?


Is a graph that consists of a single point the graph of a function and can you write the equation of such a function?

MATH 1003?


When is a relation considered to be function?

A relation is a function when an x value only has one y value associated with it. An easy way to tell this is to graph the relation, then draw a vertical line through it. If, at any point, it touches the graph twice, the relation isn't a function.


What does a linear equation graph look like?

A linear function is a function whose graph is a straight line.


What is linear function?

A function is an equation that is a straight line when plotted on a graph.


When can you say that the graph is function or mere relation?

If a vertical line intersects the graph at more than one point then it is not a function.


When you are given a graph how can you come up with a rational function equation?

You cannot, necessarily. Given a graph of the tan function, you could not.


How do you identify if an equation is function or mere relation?

you will know if it is Function because if you see unlike abscissa in an equation or ordered pair, and you will determine if it is a mere relation because the the equation or ordered pairs has the same abscissa. example of function: {(-1.5) (0,5) (1,5) (2,5)} you will see all the ordinates are the same but the abscissa are obviously unlike example of mere relation: {(3,2) (3,3) (3,4) (3,5)} you will see that the ordinates aren't the same but the abscissa are obviously the same. Try to graph it.!


How can you define when the Graph is Function or not?

If a graph is a function, it will always have y=... or x=... (or anoher letter equals an equation) for example y= 3x-12 is a function


If no vertical line intersects the graph of a relation in more than one point then the relation is a function?

True.