Interpreting Graphs: Examples of Bar Graphs
This clip explores bar graphs in depth, explaining that each bar represents discrete data. The clip also reminds the student that, "
we'll often have to estimate amounts in bar graphs. Remember, the purpose of a graph is to provide a visual image o...
Subject: scale
Gross Earnings
The importance of maintaining accurate payroll records. It covers methods for calculating gross earnings, overtime earnings, and incentive pay methods such as commission and piecework pay.
Subject: scale
Transcript: . NARRATOR: TO ADD EVEN MORE INCENTIVE, A COMPANY MAY PAY ITS EMPLOYEES ON A SLIDING SCALE, SOMETIMES CALLED A VARIABLE COMMISSION RATE. THIS MEANS EMPLOYEES
Effect of Scale on Slope
The effect of scale on the steepness of a line's slope is illustrating by comparing graphs of interest rates at two different banks.
Subject: scale
Transcript: INTEREST RATE. BUT TAKE A CLOSER LOOK AT THE Y-AXES ON THE TWO GRAPHS. UH-OH, THEY USE DIFFERENT SCALES. LET'S FIND OUT HOW THAT AFFECTS THE SLOPE. WE'LL USE
Changing Scales of the x and y Axes
When and how to change the scale of an axis.
Subject: scale
Transcript: ACCURATE BY CHANGING THE SCALE ON THE AXES TO SHOW FRACTIONAL DIVISIONS LIKE THIS. NOW, EACH GRID LINE STANDS FOR 1/2. THE X-COORDINATE OF 4 AND 1/2 IS HERE
Variation Problems
A variation problem always involves two sets of information and two formulas. To solve a variation problem, a general formula is written from the variation statement. A specific formula can then be written with the constant of variation.
Subject: scale
Transcript: AND SO IMPORTANT THAT WE HAVE A SPECIAL VOCABULARY TO DESCRIBE IT. WE SAY THAT THE REAL SIZE R IS DIRECTLY PROPORTIONAL TO THE SCALE SIZE S. WE CAN ALSO
Using Proportion to Find Real Lengths from Scale Lengths
A specific formula is developed to solve a practical problem of converting scale length to real length in a scale drawing.
Subject: scale
Transcript: LET'S SEE HOW WE CAN TAKE SOME SHORTCUTS IN SOLVING PROPORTION PROBLEMS. SUPPOSE YOU'RE LOOKING AT THE SCALE DRAWING OF A BUILDING. 2 FEET OF REAL