Find the inverse of the function.f(x) = 
A. f-1(x) = x2 - 6, x ? 0
B. f-1(x) = (x + 6)2
C. Not a one-to-one function
D. f-1(x) = 
Answer: A
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Use the Rational Zeros Theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x) = x4 + 9x2 - 400
A. -4, 4; f(x) = (x - 4)(x + 4)(x2 + 25) B. -5, 5; f(x) = (x - 5)(x + 5)(x2 + 16) C. -4, -5, 4, 5; f(x) = (x - 4)(x + 4)(x - 5)(x + 5) D. 4; f(x) = (x - 4)2(x2 + 25)
Evaluate the root function at the given x-value. Round to the nearest hundredth when appropriate.f(x) = 
, x = 9
A. Undefined B. 2.39 C. -2.05 D. -2.39
Compute the exact value of the function for the given x-value without using a calculator.f(x) = 
x for x = 3
A. 
B. 
C. 
D. 125
Solve the system by substitution.x = 3y + 7y = x - 5
A. (-4, -1) B. (-4, 1) C. (4, -1) D. (4, 1)