Step 1: Recall the distance formula.
Distance between \((x_1, y_1)\) and origin \((0, 0)\) is given by
\[
d = \sqrt{x_1^2 + y_1^2}
\]
Step 2: Substitute the values.
\[
d = \sqrt{(-3)^2 + (-4)^2} = \sqrt{9 + 16} = \sqrt{25} = 5
\]
Step 3: Conclusion.
Hence, the distance of the point \((-3, -4)\) from the origin is \(5\).