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precalc unit 3 test
| Question | Answer |
|---|---|
| arithmertic formula: | an = ak + d (n-k) d = slope |
| geometric formula: | gn = gk (r)^(n-k) make sure (r) is in parenthesis!!! |
| slope formula: | y2-y1/x2-x1 |
| arithmetric sequences: | numbers change at a constant rate, addition |
| geometric sequences: | numbers change proportionately, multiplication |
| what to say w/ linear table: | f(x) is linear because the first difference is constantly # over consecutive equal length input value intervals |
| what to say w/ exponential table: | f(x) is exponential because the outputs have a constant proportion of # over consecutive equal length input value intervals |
| e values: | 0,1 1, 2.718 2, 7.389 |
| when you graph a parent function... | include as many points as you can fit on the graph as well as giving a table for the parent function with the points!!! |
| table for exponential graph: | -1, 1/b 0, 1 1, b |
| negative residual: | overestimate |
| positive residual: | underestimate |
| residual formula: | "RAP" Residuals = actual OUTPUT - predicted OUTPUT |
| linear model: | constant rate of change |
| quadratic model: | area |
| cubic model: | volume |
| always include ______ decimals in answer | 4 |
| average rate of change formula: | f(b)-f(a)/b-a |
| what to say w/ a table that is neither linear or exponential: | f(x) is neither because the 1st difference is not constant nor are the outputs a constant proportion over consecutive equal length input value intervals |
| surface area formula: | SA = 2lw + 2lh + 2hw |
| volume formula: | V = l w h |
| asymptotes always have... | arrows!!! |
Created by:
acuda25