ALG1.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; Page 2 October 2015 Update.
Algebra I · 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) #dok2
- determine (if the slope of the line is zero or undefined) #dok1
- identify (lines parallel or perpendicular to axes) #dok2
- analyze (relationships between line orientation and slope) #dok2
Learning Targets
- I can write the equation of a line that is parallel or perpendicular to the X axis. #dok2
- I can write the equation of a line that is parallel or perpendicular to the Y axis. #dok2
- I can determine whether the slope of a given line is zero. #dok1
- I can determine whether the slope of a given line is undefined. #dok1
- I can identify relationships between the orientation of a line and its slope with respect to the axes. #dok2
Big Ideas
- The orientation of a line with respect to the coordinate axes determines whether its slope is zero or undefined.
- Equations of lines parallel or perpendicular to the X or Y axis have distinct forms and properties.
Essential Questions
- How can you determine if a line is parallel or perpendicular to the X or Y axis?
- What is the equation of a line that is parallel to the X axis? To the Y axis?
- How does the orientation of a line affect its slope?
- What does it mean for a slope to be zero or undefined?
- Why is it important to understand the relationship between a line's equation and its position on the coordinate plane?