Question

the graph shows that \\(f(x) = 3^x\\) is translated horizontally and vertically to create the function \\(g(x) = 3^{x-h} + k\\).

what is the value of \\(h\\)?

-2
-1
1
2

Explanation:

Identify the horizontal asymptote of the translated function

The horizontal asymptote of \(f(x) = 3^x\) is \(y = 0\).
The graph of \(g(x) = 3^{x-h} + k\) has a horizontal asymptote at \(y = 2\).
Thus, the vertical shift is:

$$ k = 2 $$

Use a reference point to find the horizontal shift

The reference point on \(f(x) = 3^x\) at \(x = 0\) is \((0, 1)\).
Under the transformation \(g(x) = 3^{x-h} + 2\), this point shifts to \((h, 1 + 2) = (h, 3)\).
Looking at the graph of \(g(x)\), the point with a \(y\)-value of \(3\) is located at \(x = 2\).
Therefore, the horizontal shift is:

$$ h = 2 $$

Verify with another point on the graph

For \(h = 2\) and \(k = 2\), the function is \(g(x) = 3^{x-2} + 2\).
Let's test \(x = 3\):

$$ g(3) = 3^{3-2} + 2 = 3^1 + 2 = 5 $$

The graph of \(g(x)\) passes through \((3, 5)\), which matches the visual representation.

Answer:

• -2
• -1
• 1
• 2 (Correct answer)