506,622 views
9 votes
9 votes
What is the equation of the blue line?

What is the equation of the blue line?-example-1
User Queena
by
3.3k points

2 Answers

20 votes
20 votes

Answer: y = 3x + 2

Explanation:


(x-x_(1) )/(x_(2) -x_(1) ) =(y-y_(1) )/(y_(2) -y_(1) )\\

Let's choose two arbitrary points on the graph.

For example, let these be points with coordinates (1, 5) and (2, 8).

Substitute the coordinates of these points into the above formula and derive the equation of a straight line.


(x-1)/(2-1) =(y-5)/(8-5)\\\\(x-1)/(1) =(y-5)/(3)\\\\3(x-1)=y-5\\3x-3=y-5\\y=3x-3+5\\y=3x+2

User Skitz
by
3.1k points
10 votes
10 votes
hope this helps! feel free to clarify
What is the equation of the blue line?-example-1
User Maxim Zagoruyko
by
3.1k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.