Math Problem Statement

Given the function f(x) = (x - 4)2 - 3

Check all that apply

this is an exponential function

there is a shift left 4 units

there is a shift right 4 units

there is a reflection across x-axis

there is a shift down 3 units

there is a shift up 3 units

the domain is (-inf,inf)

the range is (-inf,-3]

Solution

Given the function f(x)=(x4)23f(x) = (x - 4)^2 - 3, let's analyze the characteristics:

  1. This is an exponential function:

    • Incorrect. The given function is a quadratic function (of the form (xh)2+k(x - h)^2 + k), not exponential. Quadratic functions have x2x^2 terms, while exponential functions involve expressions like axa^x.
  2. There is a shift left 4 units:

    • Incorrect. The term (x4)(x - 4) indicates a shift right 4 units (not left). Shifts to the right occur when subtracting a positive value from xx.
  3. There is a shift right 4 units:

    • Correct. The term (x4)(x - 4) means the graph of x2x^2 is shifted 4 units to the right.
  4. There is a reflection across the x-axis:

    • Incorrect. There is no negative sign in front of the squared term, so no reflection occurs across the x-axis.
  5. There is a shift down 3 units:

    • Correct. The 3-3 at the end of the function shifts the graph 3 units downward.
  6. There is a shift up 3 units:

    • Incorrect. The function has a shift downward, not upward.
  7. The domain is (,)(-\infty, \infty):

    • Correct. Quadratic functions are defined for all real values of xx, so the domain is (,)(-\infty, \infty).
  8. The range is (,3](-\infty, -3]:

    • Incorrect. The parabola opens upwards, and its minimum value is at 3-3, so the range is [3,)[-3, \infty), not (,3](-\infty, -3].

Summary of correct answers:

  • There is a shift right 4 units.
  • There is a shift down 3 units.
  • The domain is (,)(-\infty, \infty).

Would you like more details on any of these?

Here are 5 related questions to further explore these ideas:

  1. How can we determine the vertex of a quadratic function?
  2. What distinguishes a quadratic function from an exponential function?
  3. How do we find the axis of symmetry for a parabola?
  4. What are the effects of reflections in quadratic functions?
  5. How does a function's range change when its graph is shifted?

Tip: In any quadratic function, the vertex form (xh)2+k(x - h)^2 + k gives immediate insight into its shifts and vertex location!

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Algebra
Quadratic Functions
Graph Transformations

Formulas

f(x) = (x - h)^2 + k

Theorems

Graph Transformations of Quadratic Functions

Suitable Grade Level

Grades 9-10