What is the value of q for which the function f(x) = { 5 - q, x < 1; 3x + 2,

Practice Questions

Q1
What is the value of q for which the function f(x) = { 5 - q, x < 1; 3x + 2, x >= 1 } is continuous at x = 1?
  1. 0
  2. 1
  3. 2
  4. 3

Questions & Step-by-Step Solutions

What is the value of q for which the function f(x) = { 5 - q, x < 1; 3x + 2, x >= 1 } is continuous at x = 1?
  • Step 1: Identify the two pieces of the function f(x). The first piece is 5 - q for x < 1, and the second piece is 3x + 2 for x >= 1.
  • Step 2: To find the value of q that makes the function continuous at x = 1, we need to set the two pieces equal to each other at x = 1.
  • Step 3: Substitute x = 1 into the second piece of the function: 3(1) + 2 = 3 + 2 = 5.
  • Step 4: Now set the first piece equal to this value: 5 - q = 5.
  • Step 5: Solve for q by subtracting 5 from both sides: -q = 5 - 5, which simplifies to -q = 0.
  • Step 6: Multiply both sides by -1 to find q: q = 0.
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