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# Math 20 Applied

### Stack #14806

Math 20 Applied Questions | Math 20 Applied Answers |
---|---|

The y coordinate of the x intercept is | 0 |

The x coordinate of the y intercept is | 0 |

y = mx + b is a | linear function |

slope equals | m |

y intercept equals | b |

the standard form of an equations is set to equal | 0 |

there are no ------- only whole numbers | fractions |

the coefficient of the x term must be | positive |

the coefficient of other terms can be | positive or negative |

to get rid of fractions you must | multiply by the denominator |

to solve for x | make y zero |

to solve for y | make x zero |

Linear Equation | any equation that has a degree of one and when graphed on a coordinate grid becomes a line |

adding or subtracting the equations of a linear system | doesn't change the solution |

sometimes to eliminate a variable you must | multiply be a constant |

< means | less than |

> means | greater than |

< with a line underneath means | less than or equal to |

> with a line underneath means | greater than or equal to |

inequalities with only one variable can still be shown on a grid, but they will be | horizontal or vertical |

y > means you | shade above the dotted line |

y < means you | shade below the dotted line |

y > or equal to means you | shade above the solid line |

y < or equal to means you | shade below the solid line |

a system of inequalities | can consist of two or more inequalities and the solution is the region where the corosponding half-plane is the intersect or overlap |

normal shading | solution area is darkest |

reverse shading | solution ares is lightest |

in y=mx+b, m is the | slope |

in y=mx+b, b is the | y intercept |

the x intercept is where | the line crosses the x axis |

the y intercept is where | the line crosses the y axis |

a linear system | a set of two or more linear functions where the value of both x and y satisfy the two or more functions |

the solution to a system of equations is | the point(s) of intersection |

when you graph both equations the solution is | the point(s) of intersection |

steps to solving problems with inequalities | 1. assign the variables, 2. note the implicite constraints, 3. write the inequalities and 4. qraph to solve |

Raw Data | statistical information as it is collected and before it has been grouped in any way |

Tabulated Data | statistical information that has been organized and ajusted in tabular form |

Histogram | a graph where equal intervals are given io the x-axis or the y-axis and indicated by rectangles that are together and on these intervals |

Frequency Polygon | line graph produced by joining the midpoints of the tops of the columns of a histogram |

Ogive | a graph of cumulative frequency distribution and has the shape of an elongated "s" |

Population Pyramid | two back to back, horizontal histograms with a common vertical axis, used to interpret how people of various ages live |

Multiple Line Graph | two or more line graphs used to compare one comodity with another |

Stacked Bar Graph | bar graph with two or more stacks used to compare data |

Circle Graph / Pie Chart | circular graph used to chow tho relation of one part to another and to the part as a whole |

Graphs compare... | relationships between sets of quantities |

Why do we display data in bar graphs? | so that a large amount of data can be displayed in a short time period |

what do bar graphs compare? | two at more things that are simmilar |

What is the difference between a histogram and a bar graph? | a histogram has no spaces between the bars but a bar graph has spaces |

in a line graph, why are the points connected? | to show trends in the data |

ina line graph only the points are ____________ | actual values |

Time related graphs | their quantities depend on time |

Interpolation | estimation of a value between two points on the graph |

Extrapolation | estimation of a value beyond tho plottred points on the graph |

Discrete Data | can be counted using whole #'s. produces a graph with points not joined |

Continuous Data | allows for comtinuous cange such as volume or speed. produces graphs joined together |

salary | a fixed amount of money earned over a specific period of time |

wage | money earned daily or hourly |

commission | earnings based on a percent of an employee's salary durring the pay period |

graduated commision | earnings based on commission; increases or decreases when sales reach a certain level |

piecework | earnings bassed on the number of items produced |

bi-weekly | once every two weeks - 26 times per year |

semi-monthly | twice each month - 24 times per year |

weekly | 52 times per year |

monthly | 12 times per year |

annually | once par year |

Created by:
Tigger 27