Combining Functions Section 1.7.

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Presentation transcript:

Combining Functions Section 1.7

Objectives Determine the domain and range (where possible) of a function given as an equation. Add, subtract, multiply, and/or divide function. State the domain two function combined in an arithmetic method. Put together two (or more) functions using composition. Determine the value of the composition of two (or more) functions given the graphs of the functions. Determine the value of the composition of two (or more) function given the equations of the functions. State the domain two function combined through composition.

Objectives Decompose the composition of two functions into it constituent functions. Solve a word problem involving the composition of functions.

Vocabulary domain range function composition

Domain Questions Does the function have a denominator? Does the function have a square or even root? Does the function have a log or ln in it? Did the function arise from finding an inverse? Is this a “real world” problem?

Find the domain of the function:

Find the domain of the function:

Find the domain of the function:

Find the domain of the function:

Given the functions and find each of the following:

Given the functions and find the domain of each of the following:

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Express the function in the form . If , find g(x).

A spherical weather balloon is being inflated A spherical weather balloon is being inflated. The radius of the balloon is increasing at the rate of 9 cm per second. Express the surface area of the balloon as a function of time t (in seconds).