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Logarithm graph
Updated: 5/16/2020
Logarithm graph
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Storyboard Text

  • y=e^-xx is negative
  • y=e^xx is positive
  • y=-e^-x+0
  • Asymptote y=0
  • y=-e^x+0
  • y=e^xy=e^0y=1Asymptote y=0
  • Find y-intercept by letting x=0.
  • y=e^(x)+1y=e^(0)+1y=2Asymptote y=1
  • Ms Latha teaches 3 Loyalty a shortcut to remember exponential function graphs.
  • y=lg/ln(-x)x is negative
  • y=lg/lnxx is positive
  • e is negative, therefore graph is flipped downwards. Do not forget the asymptote! It is always drawn as a dotted line.
  • Asymptote x=0
  • Equations to understand exponential function graphs.
  • y=lgx0=lgx10^0=xx=1Asymptote x=0
  • Find x-intercept by letting y=0.
  • y=lg(x+1)0=lg(x+1)x+1=10^0x=0Asymptote x+1=0x=-1
  • Ms Latha teaches 3 Loyalty a shortcut to remember Logarithm graphs.
  • lg is negative therefore graph is flipped downwards. Do not forget the asymptote! It is always drawn as a dotted line.
  • y=-lg(-x)
  • y=-lgx
  • Equations to understand logarithm graphs.
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