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If g(x) = 3x + 2, what is g(-1)?

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Question: If g(x) = 3x + 2, what is g(-1)?

Options:

  1. -1
  2. 0
  3. 1
  4. 2

Correct Answer: -1

Solution: 

g(-1) = 3(-1) + 2 = -3 + 2 = -1.

If g(x) = 3x + 2, what is g(-1)?

Practice Questions

Q1
If g(x) = 3x + 2, what is g(-1)?
  1. -1
  2. 0
  3. 1
  4. 2

Questions & Step-by-Step Solutions

If g(x) = 3x + 2, what is g(-1)?
Correct Answer: -1
  • Step 1: Identify the function g(x) which is given as g(x) = 3x + 2.
  • Step 2: Substitute -1 for x in the function. This means we will replace x with -1 in the equation.
  • Step 3: Write the equation with the substitution: g(-1) = 3(-1) + 2.
  • Step 4: Calculate 3 times -1, which is -3.
  • Step 5: Add -3 and 2 together: -3 + 2.
  • Step 6: The result of -3 + 2 is -1, so g(-1) = -1.
  • Function Evaluation – Understanding how to substitute a value into a function to find the output.
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