Question
upstudy study bank question image url

Determine the symmetries (if any) of the graph of the given relation. \( 7 y=2 x^{2}-3 \) Choose the correct symmetry of the graph. A. It is symmetric with respect to the origin. B. It is symmetric with respect to the \( x \)-axis. C. It is symmetric with respect to the \( y \)-axis. D. It is not symmetric with respect to the \( x \)-axis, \( y \)-axis, or origin.

Ask by Gordon Washington. in the United States
Jan 25,2025

Real Tutor Solution

Tutor-Verified Answer

Answer

The graph is symmetric with respect to the \( y \)-axis.

Solution

To determine the symmetries of the graph of the relation \( 7y = 2x^2 - 3 \), let's analyze it step by step. First, let's rewrite the equation in a more familiar form: \[ y = \frac{2x^2 - 3}{7} \] This represents a parabola that opens upward with its vertex at \( (0, -\frac{3}{7}) \). **Checking for Symmetries:** 1. **Symmetry with respect to the \( y \)-axis:** - Replace \( x \) with \(-x\) in the equation: \[ y = \frac{2(-x)^2 - 3}{7} = \frac{2x^2 - 3}{7} = y \] - Since \( y(-x) = y(x) \), the graph is symmetric with respect to the \( y \)-axis. 2. **Symmetry with respect to the \( x \)-axis:** - Replace \( y \) with \(-y\) in the equation: \[ -y = \frac{2x^2 - 3}{7} \] - This does not simplify to the original equation unless \( y = 0 \), so the graph is **not** symmetric with respect to the \( x \)-axis. 3. **Symmetry with respect to the origin:** - Replace \( x \) with \(-x\) and \( y \) with \(-y\): \[ -y = \frac{2(-x)^2 - 3}{7} = \frac{2x^2 - 3}{7} \] - This does not result in \( -y = y \) (unless \( y = 0 \)), so the graph is **not** symmetric with respect to the origin. **Conclusion:** The graph of \( 7y = 2x^2 - 3 \) is **symmetric with respect to the \( y \)-axis**. **Answer:** C. It is symmetric with respect to the \( y \)-axis.

Reviewed and approved by the UpStudy tutoring team

error msg
Explain
Simplify this solution

The Deep Dive

To determine symmetries, we can analyze the equation \( 7y = 2x^2 - 3 \). Rearranging gives \( y = \frac{2}{7}x^2 - \frac{3}{7} \), which is a parabola opening upwards. Since all terms involving \( x \) are even (the term \( x^2 \)), the graph is symmetric with respect to the \( y \)-axis. Thus, the correct answer is: C. It is symmetric with respect to the \( y \)-axis.

Try Premium now!
Try Premium and ask Thoth AI unlimited math questions now!
Maybe later Go Premium
Study can be a real struggle
Why not UpStudy it?
Select your plan below
Premium

You can enjoy

Start now
  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to Answer and Solution
  • Full Access to PDF Chat, UpStudy Chat, Browsing Chat
Basic

Totally free but limited

  • Limited Solution
Welcome to UpStudy!
Please sign in to continue the Thoth AI Chat journey
Continue with Email
Or continue with
By clicking “Sign in”, you agree to our Terms of Use & Privacy Policy