Answer:
The y-intercept is 9.
Step-by-step explanation:
The slope-intercept form of a linear equation has the following form.
y = mx + b
where
y is the dependent variable
m is the slope
x is the independent variable
b is the y-intercept
Given the following equation
y = x + 9
The slope is 1 and the y-intercept is 9.
