Answer:

Step-by-step explanation:
we have


we know that
The function composition is equal to
(r ∘ s )(x) = r(s(x))
In the function r(x) substitute the variable x by the function s(x)
so

For x=3
substitute the value of x=3 in the function composition




Answer:
y-9= -3(x+2)
Step-by-step explanation:
y-y1= "M" (x-x1)
y1= 9
X1= -2
Answer:-1
Step-by-step explanation:
R could equal any number, but it has to be higher than 4, because 3+4=7.
Answer:13
Step-by-step explanation: