15 terms

# Functions Math 8

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Standard Form
An equation in the form Ax + By = C
increasing
a relationship in which y-values increase as x-values increase (the line tilts upwards from left to right)
linear
a relationship with a constant rate of change (a straight line)
y-intercept
the point at which a line crosses the y-axis
coordinate plane
a graph with two perpendicular axes
qualitative
a verbal description of a variable relationship
slope
rate of change in a function "rise over run" the variable "m"
nonlinear
a relationship with a varying rate of change
Slope-Intercept Form
y = mx + b
input
the values (usually x) plugged into a function
decreasing
a relationship in which y-values decrease as x-values increase (the line tilts downwards from left to right)
quantitative
a numerical description of a variable relationship
table
x-values and y-values arranged in rows and columns
output
the answers (usually y) resulting from different inputs
function
a rule that assigns each input with exactly one output