In the diagram at the left, AB is a horizontal line segment.

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Presentation transcript:

In the diagram at the left, AB is a horizontal line segment. Distance Formula In the diagram at the left, AB is a horizontal line segment. You can find its length by subtracting the x-coordinate of A from the x-coordinate of B. The length of AB is Similarly, you can find the length of CD by subtracting the y-coordinate of C from the y-coordinate of D. The length of CD is For any two points NOT on a horizontal or vertical line, you can graph the points and form a right triangle. You can then use the Pythagorean theorem to find the distance between the points.

Distance Formula cont. 1. Find the distance between T (1, -5) and V (3,-2). Round to the nearest tenth if necessary. 2. Find the distance between the pair of points. (7, -3) and (-8, -3) 3. Find the exact lengths of each side of a triangle. Then find the perimeter to the nearest tenth.