Solve the inequality 2 X−1 > 5 and graph its solution.

, , No Comments

 To solve the inequality \(2^{x-1} > 5\), we can follow these steps:


1. Subtract 1 from both sides to isolate the exponent:

   \[2^{x-1} - 1 > 4.\]


2. Rewrite the inequality using a common base:

   \[2^{x-1} > 2^2.\]


3. Since the bases are the same, we can compare the exponents:

   \[x - 1 > 2.\]


4. Add 1 to both sides to solve for \(x\):

   \[x > 3.\]


Now, we have the solution \(x > 3\).


To graph the solution on the number line, draw an open circle at \(x = 3\) (since the inequality is not inclusive), and shade to the right to represent \(x > 3\).


Here's a textual representation:


```

<---|-------------------|-------------------|--->

   0                   3                   4

```


The open circle at 3 indicates that \(x\) is greater than 3 but not equal to 3. The shaded region to the right represents all values of \(x\) greater than 3.

0 टिप्पणियाँ:

Post a Comment