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Saved by PBworks
on April 25, 2007 at 6:25:17 pm

Drew & Dubè

Question: Describe and translate between graphical, tabular, written and symbolic representations of exponential and logarithmic relationships

Answer: Exponential and Logarithmic relationships can be shown in four different ways. These are symbolic, graphical, written, and tabular.

Symbolic- Symbolic is the fancy word for equation form. General exponential form looks like y=a(b)^(x/c)+d. A stands for the starting point, and is also the y-intercept. B stands for the common ratio. C stands for the it takes to change by the common ratio. Finally D stands for the change in the Horizontal Asymptote. The general logarithmic form looks like this y=log_b(x). If the base which is repersented by B is not stated it is asumed that it is 10.

Ex/ y=4(2)^(x/3)+1 and y=log₁₀(x)

Graphical- Graphical is the method of showing it in graph form. A graph can be derived from both of the Symbolic versions of the exponential and logarithmic equations.

Ex/ > y=4(2)^(x/3)+1 > y=log₁₀(x)

Written- Written is pretty much the equation explained in a sentence.

Ex/ Exponential: An exponential growth function with a y-intercept of 3 that doubles in y values every third x value.

Logarithmic: