Use the graph to determine the value of the function.f(1)
A. -4
B. 4
C. 0
D. -2
Answer: A
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?Which of the following is not true about functions and relations? ?
A. ?Relations are not always functions. B. ?Relations are pairings of inputs and outputs. C. ?For a function to exist, every x value must have one and only one y value. D. ?For a function to exist, every x value must have one and only one y value and every y value must have one and only one x value. E. ?A function maps an x value to one and only one y value.
Write the number in words.3072
A. Thirty thousand, seventy-two B. Three hundred thousand, seventy-two C. Three million, seventy-two D. Three thousand, seventy-two
Which answer is a rectangular form of the given polar equation?
a. 
b. 
c. 
d. 
e. 
Solve the problem.Ken is 6 feet tall and is walking away from a streetlight. The streetlight has its light bulb 14 feet above the ground, and Ken is walking at the rate of 3 feet per second. Find a function, d(t), which gives the distance Ken is from the streetlight in terms of time. Find a function, 
, which gives the length of Ken's shadow in terms of d. Then find 
.
A. (S ? d)(t) = 2.85t B. (S ? d)(t) = 2.25t C. (S ? d)(t) = 1.65t D. (S ? d)(t) = 5.07t