Select the correct answer.

The function [tex]g(x) = x^2[/tex] is transformed to obtain function [tex]h[/tex]:

[tex]h(x) = g(x) - 5[/tex]

Which statement describes how the graph of [tex]h[/tex] is different from the graph of [tex]g[/tex]?

A. The graph of [tex]h[/tex] is the graph of [tex]g[/tex] vertically shifted up 5 units.
B. The graph of [tex]h[/tex] is the graph of [tex]g[/tex] horizontally shifted left 5 units.
C. The graph of [tex]h[/tex] is the graph of [tex]g[/tex] horizontally shifted right 5 units.
D. The graph of [tex]h[/tex] is the graph of [tex]g[/tex] vertically shifted down 5 units.



Answer :

Let's examine how the graph of the function [tex]\( g(x) = x^2 \)[/tex] is transformed to obtain the function [tex]\( h(x) = g(x) - 5 \)[/tex].

1. Original Function:
The function [tex]\( g(x) = x^2 \)[/tex] is a basic quadratic function, which is a parabola opening upwards with its vertex at the origin (0, 0).

2. Transformation Applied:
The transformation [tex]\( h(x) = g(x) - 5 \)[/tex] can be interpreted as [tex]\( h(x) = x^2 - 5 \)[/tex].

3. Effect of the Transformation:
Subtracting 5 from the function [tex]\( g(x) \)[/tex] results in a vertical shift of the graph:
- When we say [tex]\( g(x) = x^2 - 5 \)[/tex], this means we are moving every point on the graph of [tex]\( g(x) \)[/tex] down by 5 units.
- For example, the vertex of the parabola [tex]\( g(x) = x^2 \)[/tex], which is at (0, 0), will move to (0, -5).

4. Conclusion:
The function [tex]\( h(x) = g(x) - 5 \)[/tex] is a vertical shift of the function [tex]\( g(x) = x^2 \)[/tex] downwards by 5 units.

Hence, the correct answer is:
D. The graph of [tex]\( h \)[/tex] is the graph of [tex]\( g \)[/tex] vertically shifted down 5 units.

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