PSAT Math Grid-Ins Question 93: Answer and Explanation
Question: 93
The figure shows the graph of r(x). What is one value of x for which r(x) = 0?
Correct Answer: 2 or 5
Explanation:
2 or 5
Difficulty: Easy
Category: Graphs of Functions
Getting to the Answer: The notation r(x) = 0 means that the function is crossing the x-axis (has a y-value of 0), so look for the x-intercepts. The function r(x) intersects the x-axis at x = -2, 2, and 5. Only positive values are allowed in Grid-in questions, so use 2 or 5.
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