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Logarithms don't make sense to me..
I have the question : "Find the x-coordinate of the point where the graph of the curve with equation y=log3(x-2)+1 intersects the x-axis..
and I was wondering if anyone could help??...I'm pretty desperate!
y=0 when the line crosses the x-axis.
log3(x-2)+1 = 0
log3(x-2) = -1
3^-1 = x-2 Remember logA(B)=C A^C=B
1/3 = x-2
1/3 +2 = x
x = 7/3
Thanks very much, I'd forgotten the rule that you used... I don't remember/understand any of the logarithm rules to be honest, thanks a lot!:)