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Midpoint formula
By Khan Academy
Watch Sal find the midpoint of a segment on the coordinate plane, or find the endpoint of a segment given one point and the midpoint.
Midsegment of a Triangle | MathHelp.com
By MathHelp.com
MathHelp.com offers a comprehensive Intermediate Algebra course with a teacher. Perfect for students who are stuck in a big Intermediate Algebra class with a bad professor and are having trouble passing the course and moving on to College Algebra.
Equation of a Circle | MathHelp.com
By MathHelp.com
In this example, we’re asked to find the midpoint of the line segment joining the points (10, 1) and (2, -7), so we use the midpoint formula, which states that the midpoint of the line segment joining two points is parentheses x1 + x2 over 2…comma… y1 + y2 over 2 closed parentheses. Our first point, (10, 1), represents (x1, y1), and our second point, (2, -7), represents (x2, y2). So plugging the given information into the formula, we have parentheses x1, or 10, + x2, or 2, over 2…comma…y1, or 1, + y2, or -7, over 2, closed parentheses. Next, simplifying in the numerators, 10 + 2 is 12, so we have 12/2, and 1 + -7 is -6, so we have -6 over 2. Finally we simplify our fractions. 12/2 is 6, and -6 over 2 is -3. So the midpoint of the line segment joining the points (10, 1) and (2, -7) is (6, -3).
01 - The Distance Formula, Pythagorean Theorem & Midpoint Formula - Part 1 (Calculate Distance)
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
Finding The Focus and Directrix of a Parabola - Conic Sections
By The Organic Chemistry Tutor
This video tutorial provides a basic introduction into parabolas and conic sections. It explains how to graph parabolas in standard form and how to graph parabolas with the focus and directrix. The vertex of the parabola can be identified by analyzing the equation in standard form.