Always Use a Parenthesis, Not a Bracket, with Infinity or Negative Infinity. You Also Use Parentheses for 2 Because at 2, the Graph Is Neither Increasing or Decreasing - It Is Completely Flat. to Find the Intervals Where the Graph Is Negative or Positive, Look at the X-Intercepts (Also Called Zeros).
Do You Use Brackets for Increasing and Decreasing?
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★ Key Takeaways
Always Use a Parenthesis, Not a Bracket, with Infinity or Negative Infinity. You Also Use Parentheses for 2 Because at 2, the Graph Is Neither Increasing or Decreasing - It Is Completely Flat. to Find the Intervals Where the Graph Is Negative or Positive, Look at the X-Intercepts (Also Called Zeros).
Direct Answer • Key Takeaway