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20 votes
Evaluate the function

f(x) = 11 - 3x1
for f(-2).
5
b. 7
C. 6
---
A

Evaluate the function f(x) = 11 - 3x1 for f(-2). 5 b. 7 C. 6 --- A-example-1

1 Answer

7 votes

Answer:

Option B. 7

Explanation:

Hello!

We can solve this by plugging in -2, in the equation
\boldf(x) =

Solve:

  • f(x) = |1 - 3x|
  • f(-2) = |1 - 3(-2)|
  • f(-2) = |1 + 6|
  • f(-2) = |7|
  • f(-2) = 7

Remember:

  • In an absolute value equation, a negative value turns positive
  • In an absolute value equation, a positive value stays positive

User Rajnikant Kakadiya
by
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