PSAT Math Grid-Ins Practice Question 97
Question: 97
The point (3, 6) lies on the graph of function f in the xy-plane. If 
then what is the value of k?
Correct Answer: 8
Explanation:
81
Difficulty: Easy
Category: Function Notation
Getting to the Answer: Remember that f(x) means y. Substitute 3 for x and 6 for f(x) to find k:
Grid in 81.
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