Q: How can you tell by looking only at the equation of a function with no graph that it is nonlinear?

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A linear function would be represented by a straight line graph, so if it's not a straight line, it's nonlinear

when you represent any equation in a graph it is said to be linear.Accordin to me , not having a definite equation , is said to be non-linear.

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

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

a graph that does not have a straight line...

Related questions

A linear function would be represented by a straight line graph, so if it's not a straight line, it's nonlinear

when you represent any equation in a graph it is said to be linear.Accordin to me , not having a definite equation , is said to be non-linear.

There are infinitely many options. The equation could be a polynomial of degree greater than 1, or it could be a power function, a log function or any combination of these with trig functions. The problem is exacerbated by the fact that there is no clue in the question as to what a stands for.

A nonlinear graph doesn't make a straight line.

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MATH 1003?

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...

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

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

a graph that does not have a straight line

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

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!