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Shows how to ofirst find the coordinates of the vertex, then choose other inputs to find two more points on each side of the vertex, plott them and draw the graph.
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Shows how to shoose appropriatate input values to find five points, then plot them and draw the graph.
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A brief informal reasoning of why any division can be changed to a multiplication by reciprocating the second number or fraction, i. e. the number going into the other number. Then an example of…
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This video describes why the method for finding the intercepts works, then demonstrates finding the intercepts for an example equation and graphing its line.
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Another demo on how to use the y-intercept to start a graph of a linear equation and then use the slope to find other points on the graph. It finishes with showing the line representing all of the…
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Just a short demo of how read the location of an (x, y) point on a Cartesian coordinate graph
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Presents a compound inequality where both sides have to be solved for the variable first, and then shows how to graph the simplified results
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A demonstration of how to deal with interpreting the union and intersection of two inequalities. For a more extensive and exhaustive demo, please view the videos entitled "Understanding…
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This presents how to graph two inequalities that are connected by either the word "or" or the word "and"
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A somewhat fancierversion of seveal solving equation versions that should help solidify the process in your mind.
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This shows how to find the vertex of a parabola and then calculate the matching points one unit and two units to the left and right of hte axis of symmetry
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This has two examples so that you can learn to watch out for what looks like a solution but is not because it creates division by zero if you check the answer in the original equation. The other…
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Application of the equation relating the three sides of a right triangle:: a^2 + b^2 = c^2 where a and b are the shorter sides that make the rigiht angle and c is the lenght of the longest side.
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The key to getting this type of question is distributing any minus sign on the outside of the parentheses to each term on the inside thereby changing all of the i nner signs to their opposite
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Negative powers of 10 means that they are very small fractions.
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Just showiing how to locate and write down the x-intercepts and y-intecepts when looking at a graph
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