8adv.MATH.2.G
Write an equation of a line that is parallel or perpendicular to the x-or y-axis and determine whether the slope of the line is zero or undefined.
Grade 8 (Advanced) · Texas Essential Knowledge and Skills (TEKS) · TEKS 2012
Standard Unwrapping
AI-generated as a starting point — sign in to edit.Vocabulary
equationlinepointx-axisy-axisslopezeroundefined
Skills
- write (equation of a line parallel to the x-axis or y-axis given a point) #dok2
- determine (whether the slope of a line is zero or undefined) #dok1
- identify (parallel and perpendicular relationships to axes) #dok2
Learning Targets
- I can write the equation of a line that contains a given point and is parallel to the x-axis. #dok2
- I can write the equation of a line that contains a given point and is parallel to the y-axis. #dok2
- I can determine whether the slope of a line is zero or undefined. #dok1
- I can identify when a line is parallel or perpendicular to the x-axis or y-axis. #dok2
Big Ideas
- Lines parallel to the x-axis or y-axis have unique forms of equations and specific types of slopes.
- Recognizing the slope of a line as zero or undefined helps in understanding the orientation of lines on the coordinate plane.
Essential Questions
- What do the equations of lines parallel to the x-axis and y-axis look like?
- How can you determine if a line's slope is zero, undefined, or neither?
- Why do lines parallel to the x-axis and y-axis have different types of slopes?
- How does the orientation of a line relate to its slope and its equation?
- How can you identify and describe lines that are parallel or perpendicular to the x-axis or y-axis?