Exam 1: Functions and Limits

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Evaluate the limit,if it exists. Evaluate the limit,if it exists.

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The relationship between the Fahrenheit and Celsius temperature scales is given by the linear function. The relationship between the Fahrenheit and Celsius temperature scales is given by the linear function.   What is the F-intercept and what does it represent? What is the F-intercept and what does it represent?

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Find an expression for the function y = f(x) whose graph is the bottom half of the parabola Find an expression for the function  y = f(x) whose graph is the bottom half of the parabola   . .

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The graphs of f(x) and g(x) are given. Find the values of f (-4) and g (3). The graphs of f(x) and g(x) are given. Find the values of f (-4) and g (3).

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Find the limit Find the limit   . .

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Let Let   Find the following limits.  Find the following limits. Let   Find the following limits.

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Evaluate the limit. Evaluate the limit.

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If f and g are continuous functions with If f and g are continuous functions with

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Many physical quantities are connected by inverse square laws,that is,by power functions of the form Many physical quantities are connected by inverse square laws,that is,by power functions of the form   . In particular,the illumination of an object by a light source is inversely proportional to the square of the distance from the source.Suppose that after dark you are in a room with just one lamp and you are trying to read a book.The light is too dim and so you move   the distance to the lamp.How much brighter is the light? . In particular,the illumination of an object by a light source is inversely proportional to the square of the distance from the source.Suppose that after dark you are in a room with just one lamp and you are trying to read a book.The light is too dim and so you move Many physical quantities are connected by inverse square laws,that is,by power functions of the form   . In particular,the illumination of an object by a light source is inversely proportional to the square of the distance from the source.Suppose that after dark you are in a room with just one lamp and you are trying to read a book.The light is too dim and so you move   the distance to the lamp.How much brighter is the light? the distance to the lamp.How much brighter is the light?

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Find the domain of the function. Find the domain of the function.

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An open rectangular box with volume An open rectangular box with volume     has a square base.Express the surface area of the box as a function   of the length  x of a side of the base. An open rectangular box with volume     has a square base.Express the surface area of the box as a function   of the length  x of a side of the base. has a square base.Express the surface area of the box as a function An open rectangular box with volume     has a square base.Express the surface area of the box as a function   of the length  x of a side of the base. of the length x of a side of the base.

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