For Exercises 3-14, refer to the functions defined below. f ( x ) = x + 4 g ( x ) = 2 x 2 + 4 x h ( x ) = x 2 + 1 k ( x ) = 1 x Find the indicated functions. (See Example 1 .) ( g f ) ( x )
For Exercises 3-14, refer to the functions defined below. f ( x ) = x + 4 g ( x ) = 2 x 2 + 4 x h ( x ) = x 2 + 1 k ( x ) = 1 x Find the indicated functions. (See Example 1 .) ( g f ) ( x )
Solution Summary: The author explains how to calculate the value of (gf).
Consider the function f(x) = 3x-2 and the function g(x), which is represented by the table below
2. (MG 8, Section 5 Purple). For the three exercises below, use a graph and the Horizontal Line Test to determine if
each function represents a one-to-one function. Explain your reasoning.
(a) f(x) =x² + 3x+2
(b) f(x) =x³ – 5x+10
(c) f(x) =x³ + 5x+10
The function f(x) is the height of a model rocket x seconds after launch. The rocket reaches its maximum height in 2 seconds and hits the ground at 4 seconds. What is the practical domain for the function f(x)?
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