Make Math Work
Graph

Usage: Graph Expression
Graph [X units, Y units] Expression
Graph Expression1; Expression2; ... Expression n
Graph [x units, y units, x pixels, y pixels] Expression...

The Graph command draws a graph of the entered expression(s). The expression is formed without using 'y ='. To graph the expression y=x, enter graph x, not graph y=x.

To graph more than one expression at a time, separate the expressions with a semicolon(;), not a comma(,). Try it:
Graph sin(x); cos(x)

The default graph is drawn with 10 units on each axis. To change this, enter the new x and y units between square brackets after the command graph. For example, to change the units to 5 units along the x axis and 4 units along the y axis, enter graph [5,4] sin(x).

Numbers to the left of x will be an assumed multiplication, so 2x is an assumed 2*x.
Numbers to the right of x will be an assumed exponent, so x2 is an assumed x^2.
The assumed multiplication and assumed exponent work together, so 2x3 is an assumed 2*x^3.

Examples:
Graph 2 draws a horizontal line parallel to and 2 units above the x axis.
Graph sin(2x); cos(x) draws a graph of sin(x) and cos(x).
Graph [4,25] x2 draws the graph of x squared with 4 units on the x axis and 100 units on the y axis.


 Try It   
 Enter an expression: