Write the number as a product of a real number and i. Simplify the radical expression.
A. ± 40
B. 40i
C. i
D. -40i
Answer: B
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Determine whether the line's slope is positive, negative, zero, or undefined.
A. undefined slope B. zero C. negative D. positive
Evaluate the function for the indicated input and interpret the result.The table lists the number of persons voting in an election by election year and sex, for a small community. 
Let this table be a partial numerical representation of a function f, where 
computes the number of persons who voted in the year x whose sex is y. Evaluate 
Interpret the result.
A. f (1992, Male) - f (1992, Female) = 170 In the year 1992, 170 more men voted than women. B. f (1992, Male) - f (1992, Female) = -170 In the year 1992, 208 more women voted than had previously voted in 1988. C. f (1992, Male) - f (1992, Female) = 161 In the year 1992, 161 more men voted than women. D. f (1992, Male) - f (1992, Female) = 208 In the year 1992, 208 more men voted than women.
Solve the equation.125x = 625
A. 
B. 
C. 
D. 
Write the decimal as a fraction or mixed number in lowest terms.31.09
A. 310
B. 3109
C. 3
D. 31