Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
23 Cards in this Set
- Front
- Back
|
linear equation in two variables
|
y=mx+b, aka the simplest mathematical model for relating two variables
|
|
|
slope-intercept form
|
y=mx+b
|
|
|
ratio
|
if the x and y axis have same unit of measurement, then slope has no units
|
|
|
rate
|
if x axis and y axis have different units of measure
|
|
|
point-slope form
|
y-y1=m(x-x1)
|
|
|
two-point form
|
y-y1=y2-y2/x2-x1(x-x1)
|
|
|
general form
|
Ax+By+C=0
|
|
|
linear interpolation
|
when the estimated point lies in between 2 points
|
|
|
linear extrapolation
|
when the estimated point lies outside 2 points
|
|
|
parallel
|
slopes are equal; m1=m2
|
|
|
perpendicular
|
m1=-1/m2
|
|
|
relation
|
two quantities that are related to eachouther by some rule of correspondance.
|
|
|
function
|
is a 1 to 1 relation; every x is only to 1 y
|
|
|
domain
|
set of all inputs for which a function is defined
INDEPENDENT VARIALBLE |
|
|
range
|
set of all outputs assumed by the dependent variable ( set of all functional values)
|
|
|
first chracteristic of a function
|
every domain is matched to a range
|
|
|
2nd characteristic
|
not every range must have a domain
|
|
|
3rd characteristic
|
a range can have more than 1 matched domain
|
|
|
4th characteristic
|
A domain can only be matched to 1 range
|
|
|
four ways to represent a function
|
VANG
V:verbally A:algebraically N:numerically G:graphically |
|
|
implied domain
|
domain is not specified, all real #s are assumed
ex. f(x)= 1/x-4 all real numbers but x≠4 |
|
|
independent variable
|
x
|
|
|
dependent variable
|
y
|
