Extend: Graphing Technology Lab, Representing Functions
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To graph a function using the calculator, you start by entering the function.
Graph:
Table:
Consider the given function.
g(x)=- x-3
We want to graph this function. To do so, let's use a graphing calculator. To draw a graph, we first push the Y= button. After that, we have to enter the function in Y_1. Note that if a function starts with a negative, you have to use ( - ) and not the subtraction symbol.
To draw the graph, push GRAPH. If the graph does not show up, you might have to change the window settings.
Finally, using the calculator again, we can determine five ordered pairs. By pushing 2ND and GRAPH, we get a table of values for whole number inputs of x.
The following are five ordered pairs that we have arbitrarily chosen. (0, - 3), (1,- 4), (2,- 5), (3,- 6), (4,- 7)