What am I suppose to look for on the graph, in order to solve this? Sorry if this seems obvious. Use a graph to solve the equation 2^-x - 6
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Originally Posted by Såxon What am I suppose to look for on the graph, in order to solve this? Sorry if this seems obvious. Use a graph to solve the equation 2^-x - 6 is the equation supposed to be $\displaystyle 2^{-x} = 6$ ???
maybe you mean 2^-x -6=0??
oh wow, sorry yes it is (2^-x) - 6 = 0...
Originally Posted by Såxon oh wow, sorry yes it is (2^-x) - 6 = 0... you could use a graph on a calculator and calculate the root. or ... $\displaystyle 2^{-x} = 6$ $\displaystyle \ln(2^{-x}) = \ln(6)$ $\displaystyle -x \cdot \ln(2) = \ln(6)$ $\displaystyle x = -\frac{\ln(6)}{\ln(2)}$
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