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Moxamed

Graph: ( Show Graph PLS ) 1. Y=5^(x2)3 2. f(x)=log1/5 (x+2) 3. f(x)=(1/4)^x +2. Find Range 4. f(x)=4x^256x201 Solve Equation & Give An Exact Solution 5. log(x+9)=1  logx 


pskinner
Joined: Apr 2, 2005 Posts: 797 Status: Offline 
To plot 1, 2, or 3 above, you need to be an A+ Member. Then, you would enter just the right hand side into the function graphing calculator: 1. 5^(x2)3 2. log((1/5)(x+2) (not sure what you meant here) 3. (1/4)^x+2 For 4, you can plot as a member and get the range in the tutorial information. For 5: log(x+9)+log(x)=1 log(x+9)x=1 Assuming this follows usual notation that the base is 10: (x+9)x=10^1=10 x^2+9x10=0 (x+10)(x1)=0 x=10 or x=1 solves this equation, but 10 is not permitted since it is not in the domain of the log function, so you can check that x=1 works.  Principal Skinner 


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