For Exercises 31-46, to the functions defined below. m ( x ) = x 3 n ( x ) = x − 3 r ( x ) = x + 4 p ( x ) = 1 x + 2 Find each function value if possible. (See Example 3 .) ( m ∘ n ) ( 5 )
For Exercises 31-46, to the functions defined below. m ( x ) = x 3 n ( x ) = x − 3 r ( x ) = x + 4 p ( x ) = 1 x + 2 Find each function value if possible. (See Example 3 .) ( m ∘ n ) ( 5 )
Solution Summary: The author explains how to calculate the value of (mcirc n) (5 ) for the functions m, f, and g.
Determine if the functions in each pair are equivalent. Provide mathematical proof or
justification for your answer – algebraic or by substituting x = 0.
a) f (x) = (-5x² + 100x + 1000) – (-5x² + 75x + 1200) and g(x) = 25x – 200
b) f(x) = (2x – 1) + (x – 2) – (x – 3) and g(x) = (3x – 2) – (2x + 3) – (-x – 1)
The table below represents the inputs (x) and outputs [f(x), g(x), and h(x)] for three functions. One function represents a line, one represents a quadratic, and the other is an exponential
a.Determine which function is the line, which is the quadratic, and which is the exponancial:
x
f(x)
g(x)
h(x)
3
-2
10
27
4
-6
15
9
5
-10
22
3
6
-14
31
1
7
-18
42
1/3
b.Using the above table, what is the equation of the linear function?
c. Using the above table, what is the equation of the exponential function?
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