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if its in slope intercept form it is linear

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Linear functions are those whose graph is a straight line. A linear function has one independent variable and one dependent variable. The independent variable is x and the dependent variable is y. a is the constant term or the y intercept.    and    As we stated earlier, nonlinear functions are functions that are not linear functions. Therefore, they have the opposite properties of a linear function. The graph of a linear function is a line. Thus, the graph of a nonlinear function is not a line.Jan 12, 2016

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https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/linear-nonlinear-functions-tut/v/linear-and-nonlinear-functions-example-3

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https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/linear-nonlinear-functions-tut/v/linear-and-nonlinear-functions-example-3

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credits: Teachers Pay Teachers

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https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/linear-nonlinear-functions-tut/v/linear-and-nonlinear-functions-example-3

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A linear function is when there is a constant pattern of both slope and y-intercept or a straight line and not curved

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"A nonlinear system is a system in which the change of the output is not proportional to the change of the input." If it is a straight line it is linear if it is curved it is non- linear.

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Linear functions are proportional to the change of the input and use the slope formula, y=mx+b. Like the names, linear functions are visualized as sloped lines on a graph while nonlinear functions are curved.

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https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/linear-nonlinear-functions-tut/v/linear-and-nonlinear-functions-example-3

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When graphed, a linear equation will have a straight line that has a constant slope. ... A linear equation will have constantly increasing y values and a straight line, while a nonlinear equation will have outputs increasing at a non-constant rate and a curved graph.

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A linear function that graphs to a straight line the function has either one or two variables. A non linear function is all other variables

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A linear function has a constant rate of change, while a non-linear function does not have a constant rate of change. Explanation: As the name implies, a linear function will graph as a straight line. I:()

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Linear functions have a constant slope, so nonlinear functions have a slope that varies between points. Algebraically, linear functions are polynomials with highest exponent equal to 1 or of the form y = c where c is constant. Nonlinear functions are all other functions. An example of a nonlinear function is y = x^2.

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Linear equations will exist for all values of “x” and “y.” Non linear equations, on the other hand, may not have solutions for certain values of “x” or “y.”

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Straight = Linear
Not straight = Non - Linear

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linear and nonlinear functions - Google Search

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graph equations difference between math non linear equation 8th grade exit ticket worksheet functions worksheet pay teachers

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A linear function is a function with standard form y = mx + b, where m is the slope and b is the y-intercept, and whose graph looks like a straight line. ... One such nonlinear function is a quadratic function, which is written in the standard form, y = ax2 + bx + c. The graph of a quadratic function is a parabola