$\"\"$

Observe the grah, curve touches the $\"\"$ -axis at the point $\"\"$ .

Consider the exponential equation $\"\"$ .

Check whether the point $\"\"$ corresponds to the exponential equation $\"\"$ .

Substitute $\"\"$ in $\"\"$ .

$\"\"$

Consider another point $\"\"$ on the graph.

Check whether the point $\"\"$ corresponds to the exponential equation $\"\"$ .

$\"\"$

Thus, the graph related to the exponential equation (d) $\"\"$ .

$\"\"$

The exponential equation to the graph is (d) $\"\"$ .