Final answer:
The correct absolute value equation that has the solutions x = 8 and x = 18 is b. |x-18| = 8.
Step-by-step explanation:
An absolute value equation is of the form |x – a| = b, where a is the shift and b is the distance from the shift. In this case, the given solutions are x = 8 and x = 18, so we need an equation with shifts at 8 and 18. Since the absolute value of a number is always positive, the equation should be |x - 8| = 10, and |x - 18| = 10. Therefore, the correct equation is b. |x-18| = 8.