a f(a) is the function f(x) where x is replaced by a.
So we have
(3x^2 + x + 3 - (3a^2 + a + 3)) / ( x - a)
= (3x^2 - 3a^2 + x - a) / (x = a) Answer
b (3(x + h)^2 + x + h + 3 - (3x^2 + x + 3)) / h
= (3x^2 + 6xh + 3h^2 + x + h - 3x^2 - x - 3) ) / h
= (6xh + h + 3 h^2) / h
= 6x + 3h + 1 Answer
Step-by-step explanation:
given

as equation 1, and

as equation 2.
Now, multiply equation 2 by 2.

now let's this equation be equation 3.
We now use equation 1 + equation 3 to eliminate y and find x.

Now substitute x = 7 into equation 2.

Answer:
g(f(x)) = 6x - 9
Step-by-step explanation:
To find g(f(x)), substitute x = f(x) into g(x) , that is
g(3x - 5)
= 2(3x - 5) + 1 ← distribute parenthesis and simplify
= 6x - 10 + 1
= 6x - 9
Answer:

Step-by-step explanation:
Given the equation

Divide both sides by 

Simplify

Add 9 to both sides

Simplifying



as


Therefore,

<span>Amplitude: 3; period: pi/2; midline: y = 2</span>