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the slope of a line is a number that describes both the direction and the steepness of the line.

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It is like a machine that has an input and an output.
And the output is related somehow to the input.

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Two numbers written in a certain order.
Usually written in parentheses.
(5,6

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Half-life is the time required for a quantity to reduce to half its initial value. The term is commonly used in nuclear physics to describe how quickly unstable atoms undergo, or how long stable atoms survive, radioactive decay.

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How far a number is from zero.

6 is 6 away from zero,
and −6 is also 6 away from zero.
So the absolute value of 6 is 6,
and the absolute value of −6 is also 6

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The x-coordinate of a point where a line, curve, or surface intersects the x-axis

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Extrema refers to all maximum and minimum values.

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The lowest point in a particular section of a graph.

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The highest point in a particular section of a graph.

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The y-intercept of this line is the value of y at the point where the line crosses the y axis

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Discrete mathematics is the branch of mathematics dealing with objects that can assume only distinct, separated values.

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In mathematics, a continuous function is, roughly speaking, a function for which sufficiently small changes in the input result in arbitrarily small changes in the output.

As an example, consider the function h(t), which describes the height of a growing flower at time t. This function is continuous.

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A dependent variable is a variable that is changed due to the independent variable.

(Time Spent Studying) causes a change in (Test Score) and it isn't possible that (Test Score) could cause a change in (Time Spent Studying).

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An independent variable is a variable that is unchanged, and stands alone.

(Time Spent Studying) causes a change in (Test Score) and it isn't possible that (Test Score) could cause a change in (Time Spent Studying).

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The range of a set of values is the difference between the highest and lowest numbers in a set of data.

The range of (1,2,3,4,5,6,7,) is 5.

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A domain is all the values that go into a function.

when the function f(x) = x2 is given the values x = {1,2,3,...} then {1,2,3,...} is the domain.