Question

solve for c and graph the solution.
|c - 530| < 20
click two endpoints to graph a line segment, an endpoint and an arrowhead to graph a ray, or two arrowheads to graph a line. to change endpoints from filled - in circles to empty circles, click on them.

Explanation:

Step1: Remove absolute value

$$-20 < c - 530 < 20$$

Step2: Add 530 to all parts

$$-20+530 < c - 530+530 < 20+530$$
$$510 < c < 550$$

Answer:

The solution is \(510 < c < 550\). On the number - line, click on \(510\) (make it an empty circle) and \(550\) (make it an empty circle) and then click between them to graph the line segment.