Answer:
(2, -4).
Step-by-step explanation:
x^2 - 4x
= (x - 2)^2 - 4.
So the vertex is at
(2, -4).
Answer:
2x-9
Step-by-step explanation:
a number=x
multiply by 2
2x
subtracted by 9
2x-9
Answer:
Step-by-step explanation:
m (x) = (x+ 5) / (x -1) and n(x) = x - 3.

Hence

but n is a function and n = x-3. Now, replace value of n on m (n)

simplify it

since (m . n) (x) is a fraction function, its domain will be all x such that the denominator is NOT 0. That is

among options, only C has the same denominator with 
Hence their domains are the same.
Answer:
1/2
Step-by-step explanation:
To find out how much money Gerri spent, add up the two fractions.
(9/22) + (2/22) = (11/22)
(11/22) can then be simplified to (1/2).