###### Asked in Math and ArithmeticAlgebraGeometry

Math and Arithmetic

Algebra

Geometry

# How do you put points into an equation?

## Answer

###### Wiki User

###### June 24, 2017 10:42PM

Points are usually expressed through their coordinates. For example, in two dimensions, two numbers are used, such as (5, -1); or generically, with variables, you can use something like (x1, y1) for your first point, (x2, y2) for your second point, etc. You can use such values in some equations.

###### Wiki User

###### June 24, 2017 8:41AM

Select a set of value for the variable in the equation, x, and
calculate the value of function, f(x). Then the point is (x, f(x)).
Repeat for different values of x.

If dealing with a function of several variables (x1, x2, x3, ..., xn), select a set of values for the variables and evaluate the function. Then the coordinates of the point, in n+1 dimensional space, are (x1, x2, x3, ... , xn, f).

## Related Questions

###### Asked in Math and Arithmetic, Algebra, Calculus

### Is it easier to solve an equation for y first before finding points?

It is always easier to use an equation to find points since all
you would have to do is substitute values into the equation to find
the final unknown value that will tell the point. To get the
equation, however, you would usually need to have some points at
the start to help derive the equation in the end.

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