Finite Mathematics ı dont know how can ı solve 3 and 5 question please help me

43/7

(x - 6)^-1 + 6

Step-by-step explanation:

inverse of 13 is such u that

u [+] 13 = 7

so

13u - 6(u + 13) + 42 = 7

7u - 78 + 42 = 7

7u - 36 = 7

7u = 43

u = 43/7

We could also simply do

[-]13 = -1[*]13 =  (13-6)^-1 + 6 = 1/7 + 6 = 43/7

We see that the second method is much easier.

[-]x = -1[*]x = (x - 6)^-1 + 6

whatvare the choices

step-by-step explanation:

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph