Rational functions day 2.pptx worked
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Transcript of Rational functions day 2.pptx worked
Warm-Up• Solve:
• Solve: =5
• Solve:
Homework Questions
Rational Functions Day 2With Limits
Infinite Limits - Asymptotes•
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Infinite Limits - Asymptotes•
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Infinite Limits - Asymptotes•
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Algebraically…using limits• Anytime you are given an equation – factor first!• Take the limit at all points of discontinuity!
• If you get then you have a hole at that point…• You will have to find the (x,y) coordinate of the hole!
• If you get then you have a VA at that x-value…• You will have to do limits to talk about behavior and be able to
graph without a calculator!
Finding Holes using limits• •
Finding VA using limits•
Finding VA using limits•
61)( 2
xxxxf
Find VA and holes using limits•
422)( 2
2
xxxf
Long Division•
Long Division
1133)(
23
x
xxxxf
Long Division
Homework• P. 246 • (11-18)• (19-22) State all VA and holes using limits• (37, 40, 41, 44) you need to find VA and holes using limits, state
domain and range, increasing/decreasing intervals.