Explore Rational Equation Domains: Find the Area of (x/(5x-69) = 2/(x-1)

Question

Find the area of domain (no need to solve)

x5x6=2x1 \frac{x}{5x-6}=\frac{2}{x-1}

Video Solution

Solution Steps

00:00 Find the substitution domain
00:03 Substitution domain exists, to ensure we don't divide by 0
00:06 Isolate X to find the substitution domain
00:12 This is one substitution domain, now let's use the same method for the second
00:19 The substitution domain is both combined, and this is the solution to the question

Step-by-Step Solution

To solve the problem, follow these steps:

  • Step 1: Identify where each denominator is zero to find the domain restrictions.

  • Step 2: Solve each condition separately to exclude the non-permissible xx values.

Now, let's work through each step:

Step 1: The first expression involves the denominator 5x65x - 6. Set it to zero:

5x6=05x - 6 = 0

Solve for xx:
5x=65x = 6
x=65=115x = \frac{6}{5} = 1\frac{1}{5}

This means the function is undefined for x=115x = 1\frac{1}{5}.

Step 2: The second expression involves the denominator x1x - 1. Set it to zero:

x1=0x - 1 = 0

Solve for xx:
x=1x = 1

This means the function is undefined for x=1x = 1.

The domain of this expression is all real numbers except where these denominators are zero. Therefore, the domain restriction is:

The values of xx cannot equal 1 or 115 1\frac{1}{5} , which corresponds to choice 3.

Therefore, the solution to the problem is x1,x115 x \neq 1, x \neq 1\frac{1}{5} .

Answer

x1,x115 x≠1,x≠1\frac{1}{5}