Qat1 Task 2 Faq (This Really Helps!)

QAT1 Frequently Asked Questions: Task 2 General

Q: I’ve entered my name and student number in the Excel spreadsheet but I don’t see the graph. A: If you are working on a MAC or using Openoffice or Numbers the graph may not show up. Go back to TaskStream and just below the link for the Excel spreadsheet download is another link that opens your task in a browser. Make a screenshot of this to put in your file.

Q: My numbers in the given and on my graph are not the same. What is the difference between a coefficient and a coordinate? A: Don't confuse the given numbers with the numbers on the graph. The given numbers will end up being the coefficients of the variables in the equations (the numbers in front of the letters). The numbers on the graph are solutions to that equation. The numbers you see specifically are the x and y intercepts (where the lines cross the axes). So if you plug 0 in for x in the equation you'll get the number on the y-axis that corresponds to the line for that equation. Where the lines intercept an axis is not the same as the multiplier for that variable. So, for instance, if a line intersects the y-axis at 10 (for example), that means if we only made brand y we could make 10 cases before we run out of that variable. That does not mean that the multiplier of y is 10. Sometimes the multiplier and the intersection are the same, or the reverse of the other variable, but that is only coincidence as they are usually not the same numbers. Remember that the place on the graph where the line runs into the y-axis is not the number of units we use when we make a brand Y case, it is the number of Brand Y cases we can make (if we don't make any Brand X), at the point where we will use up the last unit of the ingredient. So, the multiplier for the variable in the equation is not usually the same number as the intersection of the line and the axis on the graph -- they can be the same but that is usually coincidence and nothing more. Objective Function

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