A line passing through the points `(a ,\ 2a)` and `(-2,\ 3)` is perpendicular to the line `4x+3y+5=0` , find the value of `adot`

Explanation

To solve the problem step by step, we will follow these instructions:

### Step 1: Identify the slopes
We are given a line that is perpendicular to the line represented by the equation \(4x + 3y + 5 = 0\). First, we need to find the slope of this line.

**Hint:** To find the slope from the equation of a line, convert it into the slope-intercept form \(y = mx + c\).

### Step 2: Convert the line equation to slope-intercept form
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