Problem 24 of 34fun-024
A table gives five values of a function : , , , and . What is the value of ?
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Solution walkthrough1:16
- Each row of the table pairs an input with its output . In , work from the inside out.
- Inside first: find in the column and read across. .
- Now . The output becomes the new input: find in the column. .
- Traps: stops after the inside step, is , and reads the table backwards.