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(a) Show that the parametric equations$ x = x_1 + (x_2 - x_1)t $ $ \quad y = y_1 + (y_2 - y_1)t $where $ 0 \leqslant t \leqslant 1 $, describe the line segment that joins the points $ P_1(x_1, y_1) $ and $ P_2(x_2, y_2) $.(b) Find parametric equations to represent the line segment from $ (-2, 7) $ to $ (3, -1) $.

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Calculus 2 / BC

Chapter 10

Parametric Equations and Polar Coordinates

Section 1

Curves Defined by Parametric Equations

Parametric Equations

Polar Coordinates

Oregon State University

Baylor University

University of Michigan - Ann Arbor

Lectures

16:57

In mathematics, a graph is a representation of a set of objects where some pairs of the objects are in some sense "related". The objects correspond to mathematical abstractions called "vertices" or "nodes", and the relations between them are represented by mathematical abstractions called "edges" or "arcs". The basic notion of a graph was developed by the 17th-century French mathematician Pierre de Fermat, and the term "graph" was coined by the 19th-century mathematician James Joseph Sylvester. The more general mathematical concept of a graph "in which any kind of relation between elements of the set is expressed as an edge, is called a network" (Kolmogorov, "1956, p. 111"). In other words, an undirected graph is a graph in which the edges have no direction associated with them. The most familiar examples of graphs are the graphs of equations. In general, the vertices of a graph can represent concepts and the edges can represent real-valued functions on the concepts, so one can speak of the graph as a function's graph or of the edge as a function's edge.

01:59

Polar coordinates are a two-dimensional coordinate system that specifies a point in terms of distance from a reference direction (the pole) and angle from a reference direction (the polar axis).

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$$ \begin{array}{c}{\text …

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(a) Show that the parametr…

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(a) Show that the line seg…

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Find parametric equations …

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