**Answer:**

<h2>0</h2>

**Step-by-step explanation:**

**METHOD 1.**

We know:

Therefore

**METHOD 2.**

exchange x to y and vice versa:

solve for y:

<em> subtract 12 from both sides</em>

<em>divide both sides by 3</em>

replace x in f(x) with the expression

put x = 0 to

**METHOD 3.**

Calculate the value of <em>**f**</em> ⁻¹(x) for x = 0:

Calculate the value of <em>**f(x)**</em> for x = -4:

**Answer:**

yes,

**Step-by-step explanation:**

For example, if it lands on 4, then u do 1*2*2*2*2 because it is 4, if 5, then do 1 *2*2*2*2*2, the two will change according to the hours.

**Answer:**

√4x + 3 - √4x - 1 = 2

√4x + 3 = 2 + √4x - 1

(√4x + 3)² = (2 + √4x - 1)²

4x + 3 = 4 + 4√(4x - 1) + 4x - 1

4x - 4x + 3 + 1 - 4 = 4√4x - 1

o = 4√4x - 1

√4x - 1 = 0

4x - 1 = 0

4x = 1

**x = 1/4**