Writing Slope-Intercept Equations

1. Complete the equation of the line through $(2,1)$ and $(5,-8)$.
Use exact numbers.

$y = \text { ______ }$

2. Complete the equation of the line through $(3, -8)$ and $(6, -4)$.
Use exact numbers.

$y = \text { ______ }$

3. Complete the equation of the line through $(3, -1)$ and $(4, 7)$.
Use exact numbers.

$y = \text { ______ }$

4. Complete the equation of the line through $(-10, -7)$ and $(-5, -9)$.
Use exact numbers.

$y = \text { ______ }$