Question | Answer |
quadrants | four regions on a coordinate plane |
coordinate plane | the plane containing the x and y axes |
x-axis | the horizontal number line |
y-axis | the vertical number line |
axes | two perpendicular number lines that are used to locate points on a coordinate plane |
origin | the point of intersection of the two axes in the coordinate plane |
x-coordinate | the first number in an ordered pair |
y-coordinate | the second number in an ordered pair |
graph | to draw, or plot, the points named by certain numbers or ordered pairs on a number line or coordinate plane, respectively |
relation | any pairing of a set of inputs with a set of outputs |
domain | the set of all inputs of a function |
range | the set of all outputs of a function |
mapping | pairs one element in the domain with one element in the range |
independent variable | input variable of a function |
dependent variable | the output variable of a function |
linear equation | an equation whose graph is a line |
function | a domain, range, inputs, outputs, pairs of inputs and outputs. |
vertical line test | if any vertical line passes through no more than one point of the graph of a relation |
functional notation | f(x) f of x, function naming |
linear inequality in two variables | an inequality that results from replacing the equals sign with greater than, greater than or equal to, less than, or less than or equal to |
graph of an inequality in two variables | in a coordinate plane, the set of points that represent all solutions of the inequality |
half-plane | in a coordinate plane, the region on either side of a boundary line |
boundary | a line that separates the coordinate plane into half-plane |