Final answer:
The y-intercept in the slope-intercept form of a linear equation, y = mx + b, is represented by the constant b and is the point where the line crosses the y-axis.
Step-by-step explanation:
The equation to find the y-intercept of a line in slope-intercept form is y = mx + b, where m represents the slope and b represents the y-intercept. The y-intercept is the point where the line crosses the y-axis, which is the value of y when x is zero. For example, if the equation of the line is y = 0.09x + 35.25, then the y-intercept would be 35.25, indicating that the line crosses the y-axis at the point (0, 35.25).