The problem asks us to graph the function $f(x) = 2 \cdot (\frac{1}{2})^x$ on the provided coordinate plane.

AnalysisExponential FunctionsGraphingFunction Analysis
2025/5/7

1. Problem Description

The problem asks us to graph the function f(x)=2(12)xf(x) = 2 \cdot (\frac{1}{2})^x on the provided coordinate plane.

2. Solution Steps

To graph the function, we will calculate the value of f(x)f(x) for different values of xx and then plot the points on the graph.
Let's choose some values for xx: x=2,1,0,1,2,3x = -2, -1, 0, 1, 2, 3.
For x=2x = -2:
f(2)=2(12)2=2(2)2=24=8f(-2) = 2 \cdot (\frac{1}{2})^{-2} = 2 \cdot (2)^2 = 2 \cdot 4 = 8
So, the point is (2,8)(-2, 8).
For x=1x = -1:
f(1)=2(12)1=2(2)1=22=4f(-1) = 2 \cdot (\frac{1}{2})^{-1} = 2 \cdot (2)^1 = 2 \cdot 2 = 4
So, the point is (1,4)(-1, 4).
For x=0x = 0:
f(0)=2(12)0=21=2f(0) = 2 \cdot (\frac{1}{2})^0 = 2 \cdot 1 = 2
So, the point is (0,2)(0, 2).
For x=1x = 1:
f(1)=2(12)1=212=1f(1) = 2 \cdot (\frac{1}{2})^1 = 2 \cdot \frac{1}{2} = 1
So, the point is (1,1)(1, 1).
For x=2x = 2:
f(2)=2(12)2=214=12=0.5f(2) = 2 \cdot (\frac{1}{2})^2 = 2 \cdot \frac{1}{4} = \frac{1}{2} = 0.5
So, the point is (2,0.5)(2, 0.5).
For x=3x = 3:
f(3)=2(12)3=218=14=0.25f(3) = 2 \cdot (\frac{1}{2})^3 = 2 \cdot \frac{1}{8} = \frac{1}{4} = 0.25
So, the point is (3,0.25)(3, 0.25).
Now we plot the points (2,8),(1,4),(0,2),(1,1),(2,0.5),(3,0.25)(-2, 8), (-1, 4), (0, 2), (1, 1), (2, 0.5), (3, 0.25) on the coordinate plane and draw the curve.

3. Final Answer

The graph of f(x)=2(12)xf(x) = 2 \cdot (\frac{1}{2})^x is a decreasing exponential function that passes through the points (2,8),(1,4),(0,2),(1,1),(2,0.5),(3,0.25)(-2, 8), (-1, 4), (0, 2), (1, 1), (2, 0.5), (3, 0.25). The graph will approach the x-axis (y=0) as x goes to infinity. The y-intercept is at (0,2)(0,2).
Note that without the ability to draw the graph here, the answer consists of calculating the points and a textual description of the graph.

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