The y-intercept of a linear equation in the form \( y = mx + b \) is the point where the line crosses the y-axis. This occurs when \( x = 0 \).
Given the equation:
\[ y = \frac{3}{4}x - 2 \]
To find the y-intercept, we substitute \( x = 0 \):
\[ y = \frac{3}{4}(0) - 2 = -2 \]
Thus, the y-intercept is at the point:
\[ (0, -2) \]
So as an ordered pair, the y-intercept is \((0, -2)\).