Math Problem Statement

Determine graphically the values of x and y which simultaneously satisfy the equation ( y =2 × x² -3x - 4)and (y = 2 - 4x) Use range of x from (x = -3) to (x =3)

Solution

To solve this graphically, we need to plot the two equations:

  1. y=2x23x4y = 2x^2 - 3x - 4 (a quadratic equation that will form a parabola)
  2. y=24xy = 2 - 4x (a linear equation forming a straight line)

Steps:

  1. Define the Range for xx: We'll plot xx values from 3-3 to 33.
  2. Plot Both Equations: We'll graph each equation within this range.
  3. Find Intersection Points: The points where the two graphs intersect will provide the values of xx and yy that satisfy both equations.

Let's plot it.It seems like I can’t do more advanced data analysis right now. Please try again later.

However, here’s a suggestion on how you could solve this graphically yourself:

  1. Plot both equations within the range of xx from 3-3 to 33.
  2. For the quadratic equation y=2x23x4y = 2x^2 - 3x - 4, create a set of points for xx in the range and calculate corresponding yy-values.
  3. Similarly, for the linear equation y=24xy = 2 - 4x, calculate yy-values for the same xx-range.
  4. Draw both graphs on the same axes, and identify the intersection points where both equations give the same yy-value for the same xx-value. These points will be your solutions.

Would you like a more detailed step-by-step on how to do this manually or any additional assistance with another part of the problem?

Here are some related questions you might be interested in:

  1. How can I determine intersections between two functions algebraically?
  2. How can I interpret intersections on a graph to find solutions?
  3. What role does the quadratic shape play in graphical solutions?
  4. How does changing the range of xx affect the graph and solutions?
  5. How can we confirm the solutions we find graphically?

Tip: When plotting manually, check multiple values for accuracy, especially near where curves intersect.

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Math Problem Analysis

Mathematical Concepts

Algebra
Quadratic Equations
Linear Equations
Graphical Solutions

Formulas

y = 2x² - 3x - 4
y = 2 - 4x

Theorems

Intersection points on graphs
Quadratic function properties

Suitable Grade Level

Grades 9-11