1. Exponential Functions
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Make a table to find ordered pairs. Then, plot and connect the points with a smooth curve.
Graph:
Domain: All real numbers
Range: y>- 1
To graph the given exponential function, we will first make a table of values.
x | 3^x-1 | f(x)=3^x-1 |
---|---|---|
- 4 | 3^(- 4)-1 | ≈ - 0.99 |
0 | 3^0-1 | 0 |
2 | 3^2-1 | 8 |
3 | 3^3-1 | 26 |
Let's now plot and connect the points ( - 4, - 0.99), ( 0, 0), ( 2, 8), and ( 3, 26) with a smooth curve.
We can see in the graph that the range is all real numbers greater than negative one. The domain of exponential functions is all real numbers. Domain:& All real numbers Range:& y>- 1