Equations of Vertical and Horizontal Lines
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Objective
I can write equations for vertical and horizontal lines.
Part 1 of 4
Warm-up video
maths unboxed · 7:10
We don't generate video — this one is by maths unboxed on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 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.
Part 3 of 4
Practice
11 questions
What is the equation of a horizontal line that passes through the point (0, -5)?
What is the equation of a vertical line that passes through the point (7, 0)?
Part 4 of 4
Exit ticket
Quick comprehension check
“What is the equation of a horizontal line that passes through the point (5, -2)?”
Sample answer included in the free materials
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