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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
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