To evaluate an equation in slope-intercept form, we first need to have the equation itself. The slope-intercept form is given by:
\[ y = mx + b \]
where:
- \( m \) is the slope,
- \( b \) is the y-intercept.
If you can provide the specific slope \( m \) and y-intercept \( b \), I can help you evaluate the equation at \( x = 3 \) and \( x = 11 \).