Find the value of the polynomial at the given replacement values.
--2x - 8 when x = -1
A)-10
B)6
C)-6
D)10

Question

Quizplus · Accepted Answer

To find the value of the polynomial when x = -1, substitute -1 for x and simplify: 
-2(-1) - 8 = 2 - 8 = -6 
Therefore, the answer is C (-6). When x = -1, we substitute it in the polynomial to get -2(-1) - 8 = 2 - 8 = -6. Therefore, the value of the polynomial at x = -1 is -6. The correct answer choice is C.

Find the Value of the Polynomial at the Given Replacement