Math Problem Statement
Complete the table of values for the functions f(x)=3x–2 and g(x)=– 2x. Write your answers as whole numbers, decimals, or simplified fractions or mixed numbers. x f(x) g(x) – 1 0 1 2 3 Based on the values in the table, where does the equation f(x)=g(x) have a solution?
Solution
Let's start by calculating the values for and for the given values of . I'll fill in the table and then determine where .
1. For :
2. For :
3. For :
4. For :
5. For :
Completed Table:
-1 | -5 | 2 |
0 | -2 | 0 |
1 | 1 | -2 |
2 | 4 | -4 |
3 | 7 | -6 |
Now, to find where :
We want to solve .
- Adding to both sides:
- Adding to both sides:
- Dividing both sides by :
Thus, the equation has a solution at , which does not appear directly in the table but is the exact solution for when .
Would you like more details or have any further questions? Here are 5 related questions for you:
- How would you solve for in equations with different linear functions like and ?
- How can you graph the two functions and ?
- What is the general method for finding where two linear functions intersect?
- How can you apply this process to non-linear equations?
- What happens when two functions are parallel, and they never intersect?
Tip: When solving for where two linear functions are equal, always isolate to find the point of intersection. If the functions are parallel, they will not intersect.
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
Function Tables
Solving Equations
Formulas
f(x) = 3x - 2
g(x) = -2x
Finding intersection: f(x) = g(x) → 3x - 2 = -2x
Theorems
Equality of Functions
Solving Linear Equations
Suitable Grade Level
Grades 8-10
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