Parallel Lines and Their Slopes In other words, the slopes of parallel lines are equal. Note that two lines are parallel if their slopes are equal and they have different y-intercepts. Perpendicular Lines and Their Slopes In other words, perpendicular slopes are negative reciprocals of each other. If you need more of a review on how to use this form, feel free to go to Tutorial

A review of the main results concerning lines and slopes and then examples with detailed solutions are presented. If a line passes through two distinct points P1 x1y1 and P2 x2, y2its slope is given by: This is another interactive tutorial on the slope of a line.

General Equation of a Straight line: The general equation of straight line is given by: For an interactive exploration of this equation Go here. Any straight line in a rectangular system has an equation of the form given above. Slope intercept form of a Line: The equation of a line with a defined slope m can also be written as follows: The above form is called the slope intercept form of a line.

To understand why, go to this interactive tutorial. Point-Slope form of a line: This is a horizontal line with slope 0 and passes through all points with y coordinate equal to k.

This is a vertical line with undefined slope and passes through all points with x coordinate equal to h. Two non vertical lines are parallel if and only if their slopes are equal.

Find the slope of a line passing through the points 23 and 0-1 -24 and -26 52 and -72 Solution to Example1: The line passing through the given points is a vertical line. Find the slope of a line passing through the points -27 and -2-1 24 and -26 -1-2 and 4-2 Example 2: Find the equation of the line that passes through the point -25 and has a slope of Solution to Example 2:Example 5: Find an equation of the line that passes through the point (-2, 3) and is parallel to the line 4x + 4y = 8 Solution to Example 5: Let m 1 be the slope of the line whose equation is to be found and m 2 the slope of the given line.

Rewrite the given equation in slope intercept form and find its slope. 4y = -4x + 8 Divide both sides by 4.

Nope, this is serious stuff; it’s about finding the slope of a line, finding the equation of a line Read More High School Math Solutions – Perpendicular & Parallel Lines Calculator. Learn why the Common Core is important for your child. What parents should know; Myths vs. facts. Remember that parallel lines have the same slope. So, in the equation y=4x-7, the slope is 4. Recall that in an equation of the form y=mx+b, the m is the slope and the b is the y-intercept.

Method 1: Using Slope Intercept Form. What is the equation of line parallel to y = 3x + 5 and through the point (1, 7)?. Many students are more comfortable using slope intercept form but this kind of problem is actually much easier, using point slope form (which is right below this work).

Step 1.

Substitute the slope from original line (3 in this case) . Video Lessons for every subject in most middle school math curriculum. Organized by grade and quarter to help you find or schedule your lessons. By writing this equation in slope-intercept form x + y = 2 Any line parallel to the given line must also have a slope of So, the line through (2, –1) that is parallel to the given point-slope form is used to write the equation of a line.

Learners will be required to convert the linear equation to slope-intercept form and identify the slope and y-intercept based on the linear equation provided. They will also frame the equation of a line; write the equation of a parallel or perpendicular line in y = mx + c form based on the given slope and intercept.

Chapter 1 Test Form K a.

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