Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

D weBworK : 201810-MT- clü Secure! https://webwork.umflint.edu/webwork2/201 810-

ID: 3017758 • Letter: D

Question


D weBworK : 201810-MT- clü Secure! https://webwork.umflint.edu/webwork2/201 810-MTH 120-0.. Q | TI VV T_T Sets hw2 Pre Up Pi Next Password/E (1 suppose that j(x)=h-1(r)and that both J and hare defined for all values of X Let h (6) = 2 and j (9)--1 Evaluate if possible and enter the value of the expression in the blank. If you do not have enough given information to evaluate the expression, enter unknown in the blank beside the expression. Grades Problems Problem (a) j(h(6)) = Problem 1 (b) h(9) Problem | (c)J(6) Problem (2) 2 (d) j(2 Problem (e) 0 Problem | (f) J-1(-1) Problem | (g) h-1(-1) 6 probem (h) (h(2) | (i) (h(-1)) Problem Problem Note: You can earn partial credit on this probiem 10 Preview Answers Submit Answers here to search

Explanation / Answer

j(h(6)) :
j and h are inverses
So, this answer is 6

-------------------------------------------------------------

h(9) :
We know that j(9) = -1
So, h^-1(9) =- 1
We cant find h(9)
Unknown

---------------------------------------------------------------

j(6) :
Unknown

---------------------------------------------------------------

j(2) :
h(6) = 2
So, h^-1(2) = 6
So, j(2) = 6
6

---------------------------------------------------------------

h(j(6)) :
6

----------------------------------------------------------------

j^-1(-1) :

j(9) = -1
Inversing :
j^-1(-1) = 9

9

----------------------------------------------------------------

h^-1(-1) :
Unknown

----------------------------------------------------------------

(h(2))^-1
Uknown

---------------------------------------------------------------

(h(-1))^-1 :

We know j(9) = -1
So, j^-1(-1) = 9
So, h(-1) = 9

So, (9)^-1
1/9