SOLUTION: How do you find the x and y intercepts of a log function? Example: f(x) = {{{ log( 2, (x+4) ) }}} I know that you need to let one variable equal 0 to solve for the other, b

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Question 316242: How do you find the x and y intercepts of a log function?
Example: f(x) =
I know that you need to let one variable equal 0 to solve for the other, but I am completely lost when it comes to the log on what to do! I've heard to cancel it out on one side (when solving for x) you need to change the x of the log (the 4 in this case) to an exponent on the base, but I'm not sure...

Answer by vleith(2983)   (Show Source): You can put this solution on YOUR website!



Let x = 0



one intercept is (0,2)




another intercept is (-3,0)
See this for a plot
http://www.wolframalpha.com/input/?i=log2%28x%2B4%29

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