Jorge's Class
Daily Updated Notes
Started Of...Started off with a warm up about factoring. We then went over about parabolas again, but figured out easier ways to graph the equations without doing so much work. Afterwards, we were assigned 4 equations to solve the x intercept, y intercept and the vertex of each one. NotesTo find x intercept - factor out the equation, then make them equal to zero to find both coordinates
ex; y=x^2+2x-3 ---> y=(x+3)(x-1) x+3=0 / x-1=0 ---> x= -3 & x =1 ---> (-3,0) (1,0) To find y intercept - will be the last number on the equation (b) ex; y=x^2+2x-3 ---> is your intercept To find the vertex - will be the median between the two x cordinates that you have ex; -3 &1 ---> -3,-2,-1,0,1 ---> is your vertex on the x axis using 'common sense' depending where the lowest coordinates are, you can figure out what the y part of the coordinate is (example below)
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December 2016
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