sat suite question viewer
Advanced Math
/ Nonlinear functions
Difficulty: Easy
The function f is defined above. What is the value of 
?
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Explanation
Choice C is correct. Adding the like terms x and 
yields the equation 
. Substituting 20 for x yields 
. The product 
is equal to 25, and the difference 
is equal to 30. Substituting these values in the given equation gives 
, and multiplying 25 by 30 results in 
.
Choices A, B, and D are incorrect and may result from conceptual or computational errors when finding the value of 
.