Convex and Concave QuadrilateralsConvex quadrilateral: A quadrilateral is called a convex quadrilateral, if the line segment joining any two vertices of the quadrilateral is in the same region. In figure, ABCD is a convex quadrilateral because AB, BC, C…

Line of Best FitWhen data is displayed with a scatter plot, it is often useful to attempt to represent that data with the equation of a straight line for purposes of predicting values that may not be displayed on the plot. Such a straight line is called …

Measure of Mean , Mode and MedianThe term “measures of central tendency” refers to finding the mean, median and mode.Mean: Average. The sum of a set of data divided by the number of data. (Do not round your answer unless directed to do so.) Median: The m…

Histogram, Cumulative Frequency HistogramThere are several ways to collect and organize data. The lesson on measures of central tendency shows an example of using a tally/frequency table. Two additional methods of organizing data are:1) frequency histog…

Qualitative vs Quantitative DataExamine the differences between qualitative and quantitative data.

Reference Table for SolidsVolume is measured in cubic units. Surface area is measured in square units.Volume (V) and Surface Area (SA) Formulas Note: Surface area formulas may need to be amended if the figure has “open” surfaces, such as when working wit…

Percentiles and More QuartilesPercentiles are like quartiles, except that percentiles divide the set of data into 100 equal parts while quartiles divide the set of data into 4 equal parts. Percentiles measure position from the bottom.Percentiles are most…

Line of Best Fit Using a Graphing CalculatorSo which line is the REAL “line-of-best-fit”?In the lesson on Line of Best Fit (without the graphing calculator), we discovered that finding the line-of-best-fit may lead to many “different” equations depending…

Polynomials In One VariableIf a polynomial has only one variable then it is called polynomial in one variable. P(x) = 2x3 + 5x – 3                            Cubic trinomial Q(x) = 7x7 – 5x5 – 3x3 + x + 3    polynomial of degree 7 R(y) = y              …

Values Of A Polynomial FunctionFor a polynomial f(x) = 3x2 – 4x + 2. Values Of A Polynomial To find its value at x = 3; replace x by 3 everywhere. So, the value of f(x) = 3x2 – 4x + 2 at x = 3 is f(3) = 3 × 32 – 4 × 3 + 2 = 27 – 12 + 2 = 17. Similarly, …