### Home > PC > Chapter 9 > Lesson 9.2.1 > Problem9-74

9-74.

Find the equation of the line connecting the points on the function $y=\sqrt { x + 1 }$ at $x = 3$ and $x =$8.

Determine the $y$-coordinates for each of the points.

Find the slope between the two points.

Choose one of the points and use the slope.
Write the equation of the line in point-slope form.
$\left(y − y_{1}\right) = m\left(x − x_{1}\right)$