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Unit 2 Learning Targets
LT 2-1: I can write an equation in slope-intercept form.
LT 2-2: I can write an equation in Point-Slope form.
LT 2-3: I can write an equation in Standard form.
LT 2-4: I can write equations of parallel and perpendicular lines.
LT 2-1: Slope-Intercept Form
LT 2-1: Slope-Intercept Form
When a linear equation is written in slope-intercept form, y=mx+b, m is the slope, and the line intersects the y-axis at (0, b), so the y-intercept is b.
Help Videos:
● How Do You Write an Equation of a Line in Slope-Intercept Form If You Have a Graph?
Practice:
2-1 Math XL
LT 2-2: Point-Slope Form
LT 2-2: Point-Slope Form
The point-slope form of a linear equation is used to write the equation of a line using the slope and any point on the line.
Help Videos:
● How Do You Write an Equation of a Line in Point-Slope Form If You Have the Slope and One Point?
● How Do You Write an Equation of a Line in Point-Slope Form If You Have Two Points?
Practice:
2-2 Math XL
LT 2-3: Standard Form
LT 2-3: Standard Form
The standard form of a linear equation is helpful for identifying the x– and y-intercepts. These are used to graph the line and to aid in understanding the constraints within a real-world context.
Help Videos:
● How Do You Use x- and y-Intercepts to Graph a Line in Standard Form?
● How Do You Write an Equation of a Line in Standard Form from a Word Problem?
Practice:
2-3 Math XL
LT 2-4: Parallel and Perpendicular Lines
LT 2-4: Parallel and Perpendicular Lines
The equations of lines can be used to help identify whether the lines are parallel or perpendicular. Parallel lines have the same slope but different x- or y-intercepts; perpendicular lines have slopes that are negative reciprocals.
Help Videos:
● How Do You Know If Two Lines are Parallel?
● How Do You Know If Two Lines are Perpendicular?
Practice:
2-4 Math XL
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