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32 Cards in this Set

  • Front
  • Back
2 sets and a rule that assigns each element of the first set to an element of the second set
set of values of the independent variables of a given function
set of values that a given function takes as its argument varies through its domain
one to one function
each x value corresponds to only one y value and each y value only corresponds to one x value
horizontal axis
x axis
vertical axis
y axis
the intersection of 2 axes, and has (0,0) coordinates
rectangular (or cartesian) coordinate system
method of locating and describing points using horizontal and vertical axes
ratio of the rise (y) to the run (x)
linear equation
first degree equation. It's graph is a straight line.
y = mx + b
nonlinear equation
higher than the first degree equation. It's graph is not a straight line.
y = ax2 + bx + c
positive slope
lines extending from lower left to upper right in a rec. coordinate system
negative slope
lines extending from upper left to lower right in a rec. coordinate system
numberic variable
a quantitative variable that describes a numberically measured value (discrete or continuious)
discrete variable
a numeric variable that takes only a finite # of real values
ex. 1, 2, 3, 5
continuous variable
a numeric variable which can assume an infinite number of real values
ex. age, distance, tempt
measure of central tendency
a single number that is most representative of the entire collection of numbers
facts or numbers that describe something
the branch of mathematics that studies techniques for collecting, organizing & interpretting data
pictorial rep. made for the purpose of studying changes in a single variable or comparing sev
graphs reveal 2 kinds of info
1. facts

2. result of a study
applications of graphs
make it easy to present& analyze large amount of numerical & factual info.
every graph must have-
title, labels, correctly scaled axes, correctly plotted data
natural numbers
counting numbers or positive integers
ex. 2,3,4,...
whole numbers, negative whole numbers and zero
ex. -72, 0 29
rational numbers
any number that can be written as a ratio of two integers (can write it as a fraction den.& num. integers)
ex. 2/5
irrational numbers
any number that is not a rational number
ex. square root of 2, pi
real numbers
any number on the number line
simple interest
i = prt
interest = principle x rate x time
compound interest
A = P(l + r/n)nt (power)
$660 8% per year for 2 yrs.
.08 x 600 = 48.00
600+48= $648 yr. 1
648(.08)= 699.94 yr. 2
slope intercept
y = mx + b
find slope containing points..
y2 - y1/ x2 - x1