The equations and their graphs are:
- Graph 4: I(x)=P(x)−4
- Graph 2: I(x)=P(x+4)
- Graph 1: I(x)=P(x)+4
- Graph 3: I(x)=P(x−4)
How to match the equations and their graphs?
The parent function is given as:
P(x) = x^2
As a general rule of function transformation, we have:
- Vertical translation up: I(x) = P(x) + k
- Vertical translation down: I(x) = P(x) - k
- Horizontal translation left: I(x) = P(x + k)
- Horizontal translation right : I(x) = P(x - k)
Using the above rules and the assumption that k is 4;
We have:
- Vertical translation up: I(x) = P(x) + 4
- Vertical translation down: I(x) = P(x) - 4
- Horizontal translation left: I(x) = P(x + 4)
- Horizontal translation right : I(x) = P(x - 4)
Hence, the graphs of the equations are:
- Graph 4: I(x)=P(x)−4
- Graph 2: I(x)=P(x+4)
- Graph 1: I(x)=P(x)+4
- Graph 3: I(x)=P(x−4)
Read more about function transformation at:
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