### Home > A2C > Chapter 4 > Lesson 4.1.1 > Problem4-10

4-10.

Write the equation for each graph.

What is the y-intercept? Pick two points and determine the slope.

$y = - \frac { 2 } { 3 } x - 4$

1. Refer to part (a).

1. Which value ($x$ or $y$) is equal to 2 on this line? (Look at the point.)

All vertical lines have undefined slope and an equation of the form $x = k$.

Refer to part (a).

Use the eTool below to check your answers by graphing your equation.
Click the link at right for the full version of the eTool: A2C 4-10 HW eTool