Page 217 - Mathematics GRADE 9, DE-STREAMED (MTH1W)

limit
The long-term behaviour of a pattern or function, or the result as the number of terms increases. For example, the limit of the value of ab (for positive values of a and b) as b approaches 0 is infinity.
linear relation
A relation between two variables that appears as a straight line when graphed on a coordinate system. May also be referred to as a linear function.
mathematical model
1) A representation of a mathematical idea. For example, a number line is a model of a mathematical idea, as it shows the order and magnitude of numbers. <br>2) A mathematical solution to a complex real-life situation, created through the mathematical modelling process.
mathematical modelling process
An iterative and interconnected process of using mathematics to represent, analyse, make predictions, and provide insight into real-life situations. This process involves four components: understanding the problem, analysing the situation, creating a mathematical model, and analysing and assessing the model.
mathematical processes, the
The set of interconnected actions involved in doing mathematics. In the Ontario mathematics curriculum, the seven mathematical processes are problem solving, reasoning and proving, representing, reflecting, selecting tools and strategies, connecting, and communicating.
mean
One of the measures of central tendency. The mean represents the value that each piece of data would have if the data were evenly distributed. It can be calculated by adding up all the numbers and then dividing the result by the number of numbers in the set. For example, the mean of 10, 20, and 60 is
(10 + 20 + 60) ÷ 3 = 30. Also called average. See also measures of central tendency, median, mode.
measurement system
A collection of measurement units and rules that define these units’ relationships to each other.
measures of central tendency
A set of measures that represent the approximate centre of a set of data. Mean, median, and mode are all measures of central tendency. See also mean, median, mode.
median
One of the measures of central tendency. The median is the middle value of a list of numbers sorted in ascending or descending order. For example, 14 is the median for the set of numbers 7, 9, 14, 21, 39. If there is an even number of data values, then the median is the average of the two middle values. See also mean, measures of central tendency, mode.
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