Applications of matrices include finding the area of a triangle, finding points, solving linear equations and cryptography of data. A matrix is simply a group of numbers, so its applications in the world of mathematics are widely variable.
Know MoreThe area of a triangle is calculated using a determinant, a type of matrix with three rows and columns representing the x and y coordinates of a triangle. The matrix is evaluated for the area. Collinear points can be found using matrices in the same way. The area, however, will evaluate to zero, which means it is a line rather than a triangle.
Cramer's Rule solves a system of equations using matrices. A coefficient matrix is created from the constants in each equation. Data encryption and decryption, or cryptography, also involves matrices and the conversion of a message into units using a key, which makes the interpretation of the message difficult for outsiders.
Learn more about Data GraphsNumerical data is data that is expressed with digits as opposed to letters or words. For example, the weight of a desk or the height of a building is numerical data.
Full Answer >To make a pie chart, organize the data as fractions of the whole. Multiply each fraction by 360 degrees, which is the number of degrees in a circle, and assign each multiplied fraction a portion of the pie chart.
Full Answer >To make a stem and leaf plot, organize the data in a list with the same first numbers together. Then write the stem numbers on one side of the chart and the leaf numbers out to the side by the appropriate stem numbers.
Full Answer >A linear relationship in mathematics is one in which the graphing of a data set results in a straight line. The formula y = mx+b is used to represent a linear relationship. In this formula m is the slope of the line, and b is the X-intercept. The graph of distance traveled versus time, at a constant speed, is a linear relationship.
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