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# 4B-Coordinate Plane

### vocabulary describing the coordinate plane

What are the 4 regions into which the coordinate plan is divided by the x and y axes? Quadrants
What is the plane containing the x- and y-axes? Coordinate plane
What is the horizontal number line? x-axis
What is the vertical number line? y-axis
What are the two perpendicular number lines that are used to locate points on a coordinate plane? Axes
What is the point of intersection of the two axes in the coordinate plane? Origin
What is the first number in an ordered pair? x-coordinate
What is the second number in an ordered pair? y-coordinate
What is to draw, or plot, the points named by certain numbers or ordered pairs on a number line or coordinate plane, respectively? Graph
What is a set of ordered pairs? Relation
What are the x-values in a relation? Domain
What are the y-values in a relation? Range
What pairs one element in the domain with one element in the range? Mapping
What are the input variables of a function? Independent variables
What are the output variables of a function? Dependent variables
What is an equation whose graph is a line? Linear equation
What is a relationship between input and output? Function
What is the test to determine if any vertical line passes through no more than one point of the graph of a relation? Vertical line test
What is a way to name a function using the symbol f(x) instead of y? Functional notation
What is an inequality that is the result of replacing the = sign in a linear equation with <, <, > or >? Linear inequality in two variables
In a coordinate plane, what is the set of points that represents all solutions of the inequality? Graph of an inequality in two variables
In a coordinate plane, what is the region on either side of a boundary line? Half-plane
What is a line that separates the coordinate plane into half-planes? Boundary
Created by: dsmith2