4.4
Objective: Find the slope of a line
and interpret slope as rate of change.
Slope of a line
Find the slope
• Rise = 5
• Run = 3
• Slope = 5/3
• Slope is positive
since both rise and
run are positive.
• Positive slo...
Find the slope
• Rise
– 1
• Run
– -2
• Slope = 1/-2
• Slope is negative since
rise is positive and run is
negative.
• Nega...
Zero Slope
• Horizontal lines
have zero slope
• 0 rise/run
Undefined slope
• Vertical lines have
undefined slope
• Rise/0 run
Slope formula
• Change in y (rise) over change in x (run)
Practice
Rate of Change
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4.4 notes

  1. 1. 4.4 Objective: Find the slope of a line and interpret slope as rate of change.
  2. 2. Slope of a line
  3. 3. Find the slope • Rise = 5 • Run = 3 • Slope = 5/3 • Slope is positive since both rise and run are positive. • Positive slope climbs from left to right. Run Rise (-3, 0) (-6, -5)
  4. 4. Find the slope • Rise – 1 • Run – -2 • Slope = 1/-2 • Slope is negative since rise is positive and run is negative. • Negative slope climbs from right to left.
  5. 5. Zero Slope • Horizontal lines have zero slope • 0 rise/run
  6. 6. Undefined slope • Vertical lines have undefined slope • Rise/0 run
  7. 7. Slope formula • Change in y (rise) over change in x (run)
  8. 8. Practice
  9. 9. Rate of Change

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