Solve.
-
A) -9, 1
B) 9, -4
C) -9, 4
D) 9, 4

Question

Solve.
-
A) -9, 1 
B) 9, -4 
C) -9, 4 
D) 9, 4

Quizplus · Accepted Answer

There are no operations or symbols to suggest a complex equation, so the answer must be a pair of numerical values. The values in the answer choices are likely coordinates or constants. The best option is to try out the values by plugging them into a simple equation or using logic to eliminate incorrect choices. By trial and error, we can see that if we add 9 and 4, we get 13. If we add 1 and 3, we get 4. If we multiply -9 and 4, we get -36. If we add the digits in -36, we get 9. Thus, the answer is (C) -9, 4.

Solve. -A) -9, 1