Step 2. Let x=0, then y=3*0+7=7. So one point is (0,7).
Step 3. Let x=-2, then y=3(-2)+7=1. So another point is (-2,1).
Step 4. Use these two points (0,7) and (-2,1) to draw a line as shown below.
I hope the above steps were helpful.
For FREE Step-By-Step videos in Introduction to Algebra, please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra and for Trigonometry visit http://www.FreedomUniversity.TV/courses/Trigonometry.
And good luck in your studies!
Respectfully,
Dr J
http://www.FreedomUniversity.TV