Answer:

Step-by-step explanation:
Given
See attachment
Required
Determine the slope of the line
From the attachment, we have the following points

and

The slope m is then calculated using:

Substitute values for the x's and y's




<em>Hence, the slope is 0</em>
Solution= x=5
Alernative form= 21 x - 105= 0<span />
Answer:m+3
Step-by-step explanation: