a pairing of input values with output values
the set of output values
the set of input values
a relation providing there is exactly one output for each input
the input variable
the output variable
a function that is in the form of y = mx + b
naming a function "f" and using the equation f(x) = mx + b
the ratio of vertical change (the rise) to horizontal change (the run); "rise over run"
two lines of a page that do not intersect
two lines on a plane that Intersect to form right angles
where the y-axis is intercepted
To find it, plug in 0 for x and solve for y.
y = mx + b
Ax + By = C
A and B are both NOT equal to zero.
where the x-axis is intercepted
two variables (x and y) show direct variation provided y = mx and k is NOT equal to zero
constant of variation
the nonzero constant "k"
a graph used to determinate whether there is a relationship between paired data
when y tends to increase along with x
when y tends to decrease as x increases
relatively no correlation
when graphed points show no linear pattern
an inequality that can be written in one of the following forms:
Ax + By < C
Ax + By (less than or equal to) C
Ax + By > C
Ax + By (greater than or equal to) C
a shaded region which contains the points that are solutions of the inequality, and an unshaded region which contains the points that are not solutions
functions that are represented by a combination of equations, each equation corresponding to a part of the domain
the center point of the graph