The beauty of mathematics, learn it, you will find that there is never a lack of beauty in life, what is lacking is the eyes to discover beauty.
The inclination angle and slope of a straight line reflect the inclination degree of the straight line from the two aspects of shape and number.
By studying this section, you can not only improve your ability to intuitive imagination, logical reasoning, and mathematical operations, but also improve your ability to read comprehension, read, recognize, use graphs, and analyze and solve problems.
Without further ado, first present the knowledge of the dry goods. These basic knowledge need to be mastered. If you don’t have time to study now, you can collect it first and then slowly figure it out.
above are summary of basic knowledge. Be sure to remember them in your mind. Only by mastering the basic knowledge first can you learn from it and apply it flexibly when doing the questions.
Regarding the comprehensive application of the inclination angle and slope of a straight line, I will analyze it from the following two aspects.
first: three-point collinear problem.
has many ways to prove that three points are collinear. If you know the coordinates of points, then using slope is the easiest way. If the slopes of straight lines AB and straight BC are equal, then points A, B, and C are collinear; conversely, if points A, B, and C are collinear, then the slopes of straight lines AB and BC are equal (when the slope exists) or the slopes of straight lines AB and BC are not present.
Second: Use numbers combined with to solve the problems related to inclination angle and slope.
has two example questions, students should take a closer look.
I hope students will carefully consider the knowledge in this section and strive to avoid losing points in future exams.
Finally, I hope that all students can achieve success in their studies, be safe and healthy, and live every day happily.
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