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The function y varies directly as x for all real numbers in the (x, y) coordinate plane. Which of the following could be the graph of y?

(A)

(B)

(C)

(D)

(E)

The Correct Answer

For i2 = -1, (5 - i)2= ?

(A)24 (B) 26 (C) 24 - 5i (D) 24 - 10i (E) 26 + 10i

Correct Answer: D

If you drive 60 miles at 90 miles an hour, how many minutes will the trip take you?

(F) 15 (G) 30 (H) 40 (J) 60 (K) 90

Correct Answer: H

When written in symbols, "The square of the product of a and b" is represented as:

(F) ab (G) ab2 (H) (ab)2 (J) a2b (K) (a2b2)2

Correct Answer: H

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