#$&* course MTH 163 Hello! Things are looking a bit more 'up' than before. Finally have time to get some things accomplished and lay waste to the To Do list.Oct. 26th @ 2:15 PM
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Given Solution: In terms of the symbol x1 the coordinates of the x = x1 point are ( x1, 1.1 x1 + .8) and the coordinates of the x = x2 point are ( x2, 1.1 x2 + .8). The rise between the two points is therefore rise = (1.1 x2 + .8) - (1.1 x1 + .8) = 1.1 x2 + .8 - 1.1 x1 - .8 = 1.1 x2 - 1.1 x1. The run is run = x2 - x1. The slope is therefore (1.1 x2 - 1.1 x1) / (x2 - x1) = 1.1 (x2 - x1) / (x2 - x1) = 1.1. &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& Self-critique (if necessary): After following the example I could see where this was going. Basically all I had to do was, for the symbol (which I deduced to be said as ‘x sub one’ and ‘x sub two’. I still don’t fully understand the way the first question was worded. As much, I’m having difficulty seeing where the x = x1 comes into play. But as the problem proceeded the clouds began to part, so to speak. But it’s still cloudy. ------------------------------------------------ Self-critique rating: ********************************************* Question: `q002. For the function y = 3.4 x + 7, what are the coordinates of the x = x1 point, in terms of the symbol x1? What are the coordinates of the x = x2 point, in terms of the symbol x2? What therefore is the rise between these two points, and what is the run? What is the average slope of the graph between these two points? Be sure to simplify your result. YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY Your solution: - For the function y = 3.4 x + 7, what are the coordinates of the x = x1 point, in terms of the symbol x1? o (x1, 3.4x1 + 7) - Symbol x2? o (x2, 3.4x2 + 7) - Rise? o (3.4x2 +7 - 3.4x1 - 7) - Run? o (3.4x2 - 3.4x1) - Slope? o 14 confidence rating #$&*: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Given Solution: In terms of the symbol x1 the coordinates of the x = x1 point are ( x1, 3.4 x1 + 7) and the coordinates of the x = x2 point are ( x2, 3.4 x2 + 7). The rise between the two points is therefore rise = (3.4 x2 + 7) - (3.4 x1 + 7) = 3.4 x2 + 7 - 3.4 x1 - 7 = 3.4 x2 - 3.4 x1. The run is run = x2 - x1. The slope is therefore (3.4 x2 - 3.4 x1) / (x2 - x1) = 3.4 (x2 - x1) / (x2 - x1) = 3.4. &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& Self-critique (if necessary): - Why did you remove the 7’s? Do you have something against the 7’s? All humor aside, mathematically speaking; why are they cleared? As much, why isn’t the run 3.4x2 - 3.4x1?