Match each set builder expression with the correct interval: 1. {x∣a<x}: a. [a,b] 2. {x∣x<b}: b. [a,b) 3. {x∣a<x≤b}: c. (a,∞) 4. {x∣a<x<b}: d. [a,∞) 5. {x∣x∈R}: e. (a,b] 6. {x∣a≤x<b}: f. (−∞,b) 7. {x∣a≤x}: g. (−∞,b] 8. {x∣x≤b}: h. (−∞,∞) 9. {x∣a≤x≤b}: i. (a,b)