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math final
studying
| Question | Answer |
|---|---|
| what is a function | where every imput has one output |
| how to solve equations | *y=mx+b |
| what's linear functions | *f(x)=mx+b A strait line, D: all real #'s |
| What are all the transformations | reflecting, rotation, translation |
| What'd variable data | any characteristic or quantity that can change or be customized |
| what's a sequence | *arithmetic or geometric a-sequence with an addition generator, common difference. g-sequence with a multiplication generator, common ratio/multiplier |
| if f(x)=-7x-3, then what does f(8) equal (function practice) | 1) f(8)=-7(8)-3 2) f(8)=-59 |
| How do you determine range? Domain? | R: _<y<_ D:_<x<_ |
| Pythagorean theorem *only for right triangles | *Hypotenuse- longest side of triangle a^2+b^2=c^2 |
| when interpreting data u___ and ____ in sentence type | predict and about |
| residual | residual=actual-predicted to find the predicted look for y^ (y hat) |
| LSRL | *y~mx+b, let statement Unique LOBF determined by the computer, used to predict |
| LOBF | *y=mx+b, let statement An eyeball line drawn to represent the "middle" of the data. Use to predict. |
| Continuous and discreet | *use the context to solve c-line is connected fully d-coordinated aren't connected |
| correlation coefficient | measure of how much or how little data is scattered around LSRL; measure of the STRENGTH of the LINEAR ASSOCIATION |
| residual plots | created to analyze the appropriateness of a best-fit model. |
| strength | weak, moderate, strong |
| shape | Linear, non-linear |
| direction | positive, negative |
| outliers | no apparent outliers, possible outliers (x,y) |
| upper/lower bounds | used to determine if the relationship is strong enough to predict. Gives a range. |
| (x,y)--->(-x,y) | reflecting over the y-axis |
| (x,y)--->(x,-y) | reflecting over the x-axis |
| (x,y)--->(-x,-y) | Rotating 180 about the origin |
| Rotating 90 about the origin | x and y digits trade places, the signs are determined by what quadrant their in |
| Parallel lines | have the same slope, different y-int |
| Perpendicular lines | cross, slopes are opposite or rescipricle |
| rebound ratio | rebounded height/dropped height, answer is a percent |
| t(n+1) | next term |
| t(n-1) | previous term |
| t(n) | current term |
| recursive | t(n+1)=t(n)SG t(1)=__ |
| explicit | a-t(n)=a(n)+b g-t(n)=b(a)^n |
Created by:
grace_millrr
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