The function y=log(-x) crosses the x-axis at which value of x?
Question
The function y=log(-x) crosses the x-axis at which value of x?
Solution
The function y = log(-x) crosses the x-axis where y = 0.
To find the x-value where this occurs, we set y = 0 and solve for x:
0 = log(-x)
To remove the logarithm, we can use the property of logarithms that says b = 10^a if a = log(b). This gives us:
10^0 = -x
Since any number raised to the power of 0 is 1, we have:
1 = -x
Solving for x gives:
x = -1
So, the function y = log(-x) crosses the x-axis at x = -1.
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