Math Problem Statement

Which of the following is true?

Solution

Let's analyze the image you've provided. The task is to determine which of the given tables correctly reflects the function f(x)=2x+x2f(x) = 2^x + x^2.

To verify which table is correct, we will compute f(x)=2x+x2f(x) = 2^x + x^2 for several values of xx and compare them with the values shown in the tables. Here's how we calculate f(x)f(x):

  1. f(x)=2x+x2f(x) = 2^x + x^2 for each value of xx in the table.
  2. Compare the computed values to the values provided in each option (a, b, c, d).

Let's compute the values of f(x)f(x) for the integers x=3,2,1,0,1,2,3,4x = -3, -2, -1, 0, 1, 2, 3, 4.

I'll calculate them now.The error occurred because raising 2 to a negative power is not directly supported in this context when using integers. To fix this, I'll adjust the computation to handle negative exponents correctly.

I'll recalculate f(x)=2x+x2f(x) = 2^x + x^2 while ensuring that fractional values are handled for negative powers of xx.The computed values for f(x)=2x+x2f(x) = 2^x + x^2 are:

f(x)=[9.125,4.25,1.5,1.0,3.0,8.0,17.0,32.0]f(x) = [9.125, 4.25, 1.5, 1.0, 3.0, 8.0, 17.0, 32.0]

Now, let's compare these results with the values in the tables:

  • Option A:
    f(x)=[9.1,4.3,1.5,1.0,3.0,8.0,17.0,32.0]f(x) = [9.1, 4.3, 1.5, 1.0, 3.0, 8.0, 17.0, 32.0]

    This is very close to our computed values, with small rounding differences, particularly for x=3x = -3 and x=2x = -2.

  • Option B:
    f(x)=[8.9,3.8,0.5,1.0,3.0,8.0,17.0,32.0]f(x) = [-8.9, -3.8, -0.5, 1.0, 3.0, 8.0, 17.0, 32.0]

    The values for negative xx do not match our computed results.

  • Option C:
    f(x)=[15.0,8.0,3.0,1.0,3.0,8.0,17.0,32.0]f(x) = [-15.0, -8.0, -3.0, 1.0, 3.0, 8.0, 17.0, 32.0]

    These values also do not match for negative xx.

  • Option D:
    f(x)=[3.0,0.0,1.0,1.0,3.0,8.0,17.0,32.0]f(x) = [3.0, 0.0, -1.0, 1.0, 3.0, 8.0, 17.0, 32.0]

    These values are incorrect for negative xx.

Conclusion:

Option A is the correct one, as it most closely matches the computed values.

Let me know if you need further details or explanations!

Here are five follow-up questions you might consider:

  1. What is the general behavior of exponential functions like 2x2^x as xx becomes negative?
  2. How does squaring negative numbers affect the function's output?
  3. Can you derive the derivative of f(x)=2x+x2f(x) = 2^x + x^2?
  4. How would f(x)f(x) change if the exponent base was something other than 2?
  5. What happens to f(x)f(x) as xx \to \infty or xx \to -\infty?

Tip: When comparing function outputs, always be mindful of rounding differences, especially when dealing with irrational numbers or exponential functions.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Exponential Functions
Quadratic Functions
Function Evaluation

Formulas

f(x) = 2^x + x^2

Theorems

Properties of Exponential Functions
Properties of Polynomial Functions

Suitable Grade Level

Grades 9-12