U.S. Public Opinion on Gay Marriage 70% (2001, 57) (2015, 57) Oppose Gay Marriage 60% 50% 40% Support Gay Marriage 30% (2015, 39) (2001, 35) 20% 10% 2001 2003 2005 2007 2009 2011 2013 2015 Year Percentage of U.S. Public
Family of Curves
A family of curves is a group of curves that are each described by a parametrization in which one or more variables are parameters. In general, the parameters have more complexity on the assembly of the curve than an ordinary linear transformation. These families appear commonly in the solution of differential equations. When a constant of integration is added, it is normally modified algebraically until it no longer replicates a plain linear transformation. The order of a differential equation depends on how many uncertain variables appear in the corresponding curve. The order of the differential equation acquired is two if two unknown variables exist in an equation belonging to this family.
XZ Plane
In order to understand XZ plane, it's helpful to understand two-dimensional and three-dimensional spaces. To plot a point on a plane, two numbers are needed, and these two numbers in the plane can be represented as an ordered pair (a,b) where a and b are real numbers and a is the horizontal coordinate and b is the vertical coordinate. This type of plane is called two-dimensional and it contains two perpendicular axes, the horizontal axis, and the vertical axis.
Euclidean Geometry
Geometry is the branch of mathematics that deals with flat surfaces like lines, angles, points, two-dimensional figures, etc. In Euclidean geometry, one studies the geometrical shapes that rely on different theorems and axioms. This (pure mathematics) geometry was introduced by the Greek mathematician Euclid, and that is why it is called Euclidean geometry. Euclid explained this in his book named 'elements'. Euclid's method in Euclidean geometry involves handling a small group of innately captivate axioms and incorporating many of these other propositions. The elements written by Euclid are the fundamentals for the study of geometry from a modern mathematical perspective. Elements comprise Euclidean theories, postulates, axioms, construction, and mathematical proofs of propositions.
Lines and Angles
In a two-dimensional plane, a line is simply a figure that joins two points. Usually, lines are used for presenting objects that are straight in shape and have minimal depth or width.
The graphs show changing attitudes toward gay marriage for the period from 2001 through 2015. Solve, a. Write the slope-intercept equation of the line that models the percentage of U.S. public that supported gay marriage, y, x years after 2001. Round the value of the slope, m, to one decimal place. If necessary, round the value of the y-intercept to the nearest whole number.
b. Write the slope-intercept equation of the line that models the percentage of U.S. public that opposed gay marriage y, x years after 2001. Round the value of the slope, m, to one decimal place. If necessary, round the value of the y-intercept to the nearest whole number.
c. Use the models from part (a) and (b) to determine the year, to the nearest whole year, during which the percentage who supported gay marriage was the same as the percentage who opposed gay marriage.
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