## How do you do two variables on a TI-84?

How to Plot Two-Variable Data on the TI-84 Plus

- Enter your data in the calculator.
- Turn off any Stat Plots or functions in the Y= editor that you don’t want to be graphed along with your histogram.
- Press [2nd][Y=] to access the Stat Plots menu and enter the number (1, 2, or 3) of the plot you want to define.

## How do you find the domain of a function with two variables?

The domain of functions of two variables, z=f(x,y) z = f ( x , y ) , are regions from two dimensional space and consist of all the coordinate pairs, (x,y) , that we could plug into the function and get back a real number.

**Can a function have 2 variables?**

A function of two variables is a function, that is, to each input is associated exactly one output. The inputs are ordered pairs, (x,y). The outputs are real numbers (each output is a single real number). The function can be written z=f(x,y).

**How do you graph two variables?**

Graph a linear equation by plotting points.

- Find three points whose coordinates are solutions to the equation. Organize them in a table.
- Plot the points in a rectangular coordinate system. Check that the points line up.
- Draw the line through the three points.

### How do you find L1 and L2 on TI 84?

Press 2nd and 1 to obtain L1 and press 2nd and 2 to obtain L2.

### Which of the following is a function involving two variables?

The graph of a function of two variables is a surface in three-dimensional space. Definition 2 The graph of a function f with the two variables x and y is the surface z = f(x, y) formed by the points (x, y, z) in xyz-space with (x, y) in the domain of the function and z = f(x, y).

**How do you determine the function of a graph?**

One can determine if a relation is a function by graphing the relation, drawing a vertical line on the graph and then checking whether the line crosses the graph at more than one point.

**How do you graph equations with two variables?**

Linear equations with two variables may appear in the form Ax + By = C, and the resulting graph is always a straight line. More often, the equation takes the form y = mx + b, where m is the slope of the line of the corresponding graph and b is its y-intercept, the point at which the line meets the y-axis.

#### What is graph with two variables?

The graph of a function z = (x, y) of two variables is called a surface. To understand more completely the concept of plotting a set of ordered triples to obtain a surface in three-dimensional space, imagine the (x, y) coordinate system laying flat. Then, every point in the domain of the function f has a unique z -value associated with it.

#### What is equation with two variables?

A linear equation in two variables is an equation with two variables (usually called x and y) where the variables are at most multiplied by a number, and added to something else. No exponents, no variables in denominators, no fancy functions of the variables.