Term | Definition |
coordinate plane | Two number lines that intersect at right angles to form four right angle sections. |
x-axis | The horizontal number line. |
y-axis | The vertical number line. |
quadrants | The four right angle sections. |
origin | Intersection point of both the x and y axis. |
ordered pair | The x and y value that identifies a location on the coordinate plane. |
coordinates | Each individual value of an ordered pair. |
scatter plot | A graph that relates two groups of data. |
positive correlation | Both sets of data increase together. |
negative correlation | One set of data decreases as the other set increases. |
no correlation | Two sets of data that are not related. |
relation | A set of ordered pairs. |
domain | The x values in the ordered pair. |
range | The y values in the ordered pair. |
function | A relation in which the x value has only one partner. |
vertical line test | A test done vertically in which you pass through only one given point at a time. |
function rule | An equation that describes a function. |
independent variable | The input values. |
dependent variable | The output values. |
rate of change (slope) | Ratio of the change in dependent values/independent values. |
point-slope form | y - y1 = m(x - x1) |
slope-intercept form | y = mx + b |
y-intercept | The location where you cross the y-axis exactly. |
standard form | Ax + By = C |
x-intercept | The location where you cross the x-axis exactly. |
parallel lines | Two lines that run side by side never touching and their slopes are the same. |
perpendicular lines | Two lines that form right angles when intersected and their slopes are opposite reciprocals of each other. |
line of best fit | The trend line that shows the relationship between two sets of data most accurately. |