Equations of Vertical and Horizontal Lines
Grade 9th Grade · Math · 50 min· Hsa-ced.a.2
What's Included
Learning Objective
I can write equations for vertical and horizontal lines.
Warm-Up Video
maths unboxed · 7:10
■ Horizontal & vertical line equations - how to find them!
Guided Notes
3 key concepts
- 1
The slope of a horizontal line is always zero, and its equation is in the form y = a constant.
- 2
The slope of a vertical line is undefined, and its equation is in the form x = a constant.
- 3
To avoid mixing up x and y, remember that vertical lines have equations of the form x = a number, because every point on the line has the same x-coordinate.
Practice Questions
11 questions · Multiple choice & Short answer
Exit Ticket
Quick comprehension check
“What is the equation of a horizontal line that passes through the point (5, -2)?”
Complete Lesson Package
Get all 3 ready-to-use resources:
Teacher GuideComplete lesson plan
Student DocPrintable student handouts
SlidesReady-to-use presentation
