The solution to an inequality is (â€"[infinity], 6. 5]. Is 6. 5 a solution to the inequality? Explain your answer. The solution includes numbers from negative infinity to 6. 5. Because a bracket is used, the solution does not include 6. 5. The solution includes numbers from 6. 5 to infinity. Because a parenthesis is used, the solution does not include 6. 5. The solution is the point (â€"[infinity], 6. 5). Because a bracket is used, 6. 5 is a solution to the inequality. The solution includes numbers from negative infinity to 6. 5. Because a bracket is used, the solution includes 6. 5.