If a(x) = 3x + 1 and b(x)= VX-4, what is the domain of (bºa)(x)? 0 (-0,00)
0 (0.00)
O [1,00)
O [4,00)

 [4,∞)

Step-by-step explanation: This is a composite function so we must respect both domain of a(x) and b(x). a(x) domain is all real numbers because you can plug any x-value into a linear function. However b(x) domain is all real numbers greater than or equal to 4 because you can take the sqr root of a negative number  so anything under 4 won't work. We can take the sqr root of 0 so we must include 4. (4-4=0)   Now let respect both functions. We can't use any number under 4 so we must start at 4 so we used a closed bracket also we can use anything positive infinity number greater than 4 so we use a paretheses to showed unboundness so it is [4,∞).

1. 3.4/4

2. 0.8/7

3. 0.5 x 3

4. 0.9 x 6

5. 10.8

6. 2.35

7. 0.567

8. 9.35

9. 0.02

10. 0.06

11. 0.16

12. 0.42

13. 0.63

14. 5.6

15. 8.1

16. 9.9

17. 0.28

18. 0.48

19. 0.27

20. 0.49

21. 0.45

22. 0.72

23. 0.9

24. 0.88

25. 0.75

26. 0.16

27. 0.328

28. 0.495

29. 0.72

30. 1.068