Find the vertical asymptotes, if any, of the graph of the rational function.

f(x) = x - 4 / x (x - 4)

a. x = 4 and x = 4
b. x = 4
c. x = 0
d. no vertical asymptote

There is a vertical asymptote for the rational function at x = −4. Set the denominator equal to 0 and solve for x.

2x + 8 = 0 → x = −4

Step-by-step explanation:

answer: 193

explanation:

200-7 = 193

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -