Determine whether the absolute value function f(x) has zero, one, or two x-intercepts.f(x) = -
- 21
A. 1
B. 0
C. 2
Answer: B
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Find the inverse of the function.f(x) = 
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = 
Solve the problem.In year 0, the number of female athletes participating in Summer Olympic-Type Games was 450. In year 11, about 3550 participated in the Summer Olympics in Atlanta. Assuming that 
and that the exponential model applies, find the value of k rounded to the hundredths place, and write the function.
A. k = 0.21; P(t) = 500e0.21t B. k = 0.17; P(t) = 500e0.17t C. k = 0.19; P(t) = 500e0.19t D. k = 0.19; P(t) = 500e0.29t
Perform the indicated operations and simplify the result. Leave the answer in factored form.
+ 
A. x + 3 B. x - 4 C. x - 3 D. x + 4
Find the product.(a - 4)(a + 4)
A. a2 - 8 B. a2 - 8a - 16 C. a2 + 8a - 16 D. a2 - 16