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Concept Check 8 ( Exponential and Logarithmic Equations ) Nam Date Score: q , / 5 6 e 2 x - e x - 6

Concept Check 8(Exponential and Logarithmic Equations)
Nam
Date
Score: q,/56
e2x-ex-6=0 solve to get an exact solution.
(8 points)
Check by graphing by setting left hand side equal to y1. Make a rough sketch or take a picture of your calculator's screen shot (with an appropriate window)
(6 points)
Xmin
Xmax
Xscl
Ymin
Ymax
Yscl
3. Use the zero method on your calculator (2nd trace, option 2) to find your solutions. Round your answer to the nearest hundredth. Does your answer match your answers from #1?
(4 points)log9(x-5)=1-log9(x3) solve to get an exact solution.
(8 points)
Which answer falls outside the domain? (Write na if there is none)
(2 points)
Check by graphing by setting the left-hand side equal to y1 and the right hand side equal to y2. Make a rough sketch or take a picture of your calculator's screen shot (with an appropriate window)
(6 points)
Use the intersect method on your calculator (2nd trace, Option 5
Concept Check 8 ( Exponential and Logarithmic

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