The problem states that the function $f(x) = log_{10}x$ has the point $(10, 1)$ on its graph. We need to find the coordinates of the transformed point from $(10, 1)$ on the transformed function $f(x) = 3log_{10}(-\frac{1}{2}(x+4))-6$.

AlgebraLogarithmsFunction TransformationsCoordinate Geometry
2025/4/10

1. Problem Description

The problem states that the function f(x)=log10xf(x) = log_{10}x has the point (10,1)(10, 1) on its graph. We need to find the coordinates of the transformed point from (10,1)(10, 1) on the transformed function f(x)=3log10(12(x+4))6f(x) = 3log_{10}(-\frac{1}{2}(x+4))-6.

2. Solution Steps

Let the original point be (x,y)=(10,1)(x, y) = (10, 1).
The transformed function is given by f(x)=3log10(12(x+4))6f(x) = 3log_{10}(-\frac{1}{2}(x+4)) - 6.
The general transformation is given by y=af(b(xc))+dy' = af(b(x'-c))+d.
Comparing with the transformed function f(x)=3log10(12(x+4))6f(x) = 3log_{10}(-\frac{1}{2}(x+4))-6, we have:
a=3a = 3, b=12b = -\frac{1}{2}, c=4c = -4, d=6d = -6.
We have the transformation equations:
y=af(b(xc))+dy = af(b(x' - c)) + d, where x=xx=x' and y=f(x)y=f(x).
For the x-coordinate:
x=b(xc)x = b(x' - c) implies that x=xb+cx' = \frac{x}{b} + c.
In this case, we have x=10x = 10, b=12b = -\frac{1}{2}, and c=4c = -4.
Therefore, x=1012+(4)=204=24x' = \frac{10}{-\frac{1}{2}} + (-4) = -20 - 4 = -24.
For the y-coordinate:
y=ay+dy' = ay + d.
In this case, we have y=1y = 1, a=3a = 3, and d=6d = -6.
Therefore, y=3(1)+(6)=36=3y' = 3(1) + (-6) = 3 - 6 = -3.
So the transformed point is (24,3)(-24, -3).

3. Final Answer

(-24, -3)

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