My Learning Cart
?
Categories
Account

If f(x) = 3x^2 + 2x - 5, what is f(1)?

₹0.0
Login to Download
  • 📥 Instant PDF Download
  • ♾ Lifetime Access
  • 🛡 Secure & Original Content

What’s inside this PDF?

Question: If f(x) = 3x^2 + 2x - 5, what is f(1)?

Options:

  1. 0
  2. 1
  3. 2
  4. -5

Correct Answer: 1

Solution: 

Substituting x = 1 into the function gives f(1) = 3(1)^2 + 2(1) - 5 = 3 + 2 - 5 = 0.

If f(x) = 3x^2 + 2x - 5, what is f(1)?

Practice Questions

Q1
If f(x) = 3x^2 + 2x - 5, what is f(1)?
  1. 0
  2. 1
  3. 2
  4. -5

Questions & Step-by-Step Solutions

If f(x) = 3x^2 + 2x - 5, what is f(1)?
  • Step 1: Identify the function f(x) = 3x^2 + 2x - 5.
  • Step 2: Substitute x = 1 into the function. This means we replace every x in the function with 1.
  • Step 3: Calculate 3(1)^2. Since 1 squared is 1, this becomes 3 * 1 = 3.
  • Step 4: Calculate 2(1). This is simply 2.
  • Step 5: Now, combine the results from Step 3 and Step 4 with the constant -5. So we have 3 + 2 - 5.
  • Step 6: Add 3 and 2 to get 5.
  • Step 7: Subtract 5 from 5 to get 0.
  • Step 8: Therefore, f(1) = 0.
  • Function Evaluation – The process of substituting a specific value into a function to find the output.
  • Polynomial Functions – Understanding the structure and components of polynomial functions.
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely
Home Practice Performance eBooks