Understanding the Concepts and Skills In Exercises, we identify the y-intercepts and slopes, respectively, of lines. For each line, determine whether it slopes upward, slopes downward, or is horizontal, without graphing the equation. find its equation. use two points to graph the equation. −2 and −3

College Algebra (MindTap Course List)
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Chapter2: Functions And Graphs
Section2.4: Writing And Graphing Equations Of Lines
Problem 30E
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Understanding the Concepts and Skills

In Exercises, we identify the y-intercepts and slopes, respectively, of lines. For each line,

  1. determine whether it slopes upward, slopes downward, or is horizontal, without graphing the equation.
  2. find its equation.
  3. use two points to graph the equation.

−2 and −3

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