Chapter 2 Linear Equations and Functions - 2.4 Write Equations of Lines - 2.4 Exercises - Skill Practice - Page 102: 30

$$y-3=2(x+1)$$

We first find the slope: $$m=\frac{9-3}{2-\left(-1\right)}=2$$ We know that point slope form is expressed as $y-y_1=m(x-x_1)$, where $(x_1,y_1)$ is a point on the line, and m is the slope of the line. Using this, we find that the equation of the line is: $$y-3=2(x+1)$$