Check your understanding of slope-intercept form by answering the following questions in your notes.

1. Describe the graph of a line in slope intercept-form, y = mx + b, with an m-value that is positive.
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   Check Your Answer

   The line increases from left to right.
   
   
2. Describe the graph of a line in slope intercept-form, y = mx + b, with an m-value that is negative.
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   Check Your Answer

   The line decreases from left to right.
   
   
3. Describe the graph of a line in slope intercept-form, y = mx + b, with an m-value that is zero.
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   Check Your Answer

   The line is horizontal.