Question

If the letter y represents a negative number, which of the following represents a positive number?

A. y + y
B. y 3
C. (1/3)y
D. 1.5(y)
E. -7(y)

Answer 1

E.

Explanation:

A. Incorrect. Since y is negative here, a negative number + a negative number = negative.

B. Not sure what’s going on here, typo? Either way, incorrect.

C. A positive number/fraction times a negative variable (y) will result in a negative solution. EX: 4(-y) = -4y. Incorrect.

D. Incorrect, same explanation from C goes with this.

E. Correct. A negative number/variable times another negative number/variable will result in a positive solution. EX: -4(-4)= 16