A.FGR.9.1
Use function notation to build and evaluate exponential functions for inputs in their domains and interpret statements that use function notation in terms of a context.
Example Problems
The exponential function y, represented in the table, can be written as .
Complete the equation for .
| x | y(x) |
|---|---|
| 0 | 4 |
| 1 | 6 |
Complete the equation for .
The exponential function k, represented in the table, can be written as .
Complete the equation for .
| x | k(x) |
|---|---|
| 0 | 9 |
| 1 | 27 |
Complete the equation for .
The exponential function z, represented in the table, can be written as .
| x | z(x) |
| 0 | 3 |
| 1 | 9 |
Complete the equation for .
| x | z(x) |
| 0 | 3 |
| 1 | 9 |
Complete the equation for .
Khan Academy ResourcesIntro to inverse functionsEvaluate functionsEvaluate function expressionsFunction rules from equationsFunction notation word problemsEvaluate inverse functionsFinding inverses of linear functionsIntro to inverse functionsFinding inverse functions: linearWorked example: Evaluating functions from equationWorked example: matching an input to a function's output (equation)Graphing the inverse of a linear functionWhat is a function?Worked example: two inputs with the same output (graph)Worked example: evaluating expressions with function notationWorked example: matching an input to a function's output (graph)Evaluating sequences in recursive formWorked example: Evaluating functions from graphInputs & outputs of inverse functionsFunction notation word problem: beachFunction notation word problem: bank
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