Math Problem Statement
Solution
Let's analyze the problem step by step:
We have two linear functions, Function A and Function B:
- Function A is represented by a table of values:
x | y |
---|---|
-6 | -10 |
-3 | -5 |
9 | 15 |
- Function B is given by the equation .
The question asks about the y-values of both functions when .
1. Determine the equation for Function A:
We need to find the equation for Function A. Since it is a linear function, we can calculate its slope () using two points from the table. Let's use the points and .
The formula for the slope is:
So, the slope of Function A is .
Now, let's use the point-slope form of the line equation to find the full equation. Using the point : Expanding: Thus, the equation of Function A is .
2. Find the y-value of Function A when :
Using the equation : So, when , the y-value of Function A is 10.
3. Find the y-value of Function B when :
Using the equation : So, when , the y-value of Function B is 5.
4. Conclusion:
When , the y-value of Function A is 10, and the y-value of Function B is 5. Therefore, the correct statement is:
"The y-value of Function A when x = 6 is greater than the y-value of Function B when x = 6."
Let me know if you'd like further details or have any questions! Here are some related questions to expand on:
- What is the significance of slope in a linear equation?
- How can you determine the y-intercept from a table of values?
- What does it mean for two linear functions to have the same slope?
- How do you graph a linear function from its equation?
- What is the relationship between the slope and the rate of change?
Tip: When finding the equation of a line from a table, always use the slope formula and a known point to derive the equation.
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Math Problem Analysis
Mathematical Concepts
Linear functions
Slope
Linear equations
Formulas
Slope formula: m = (y2 - y1) / (x2 - x1)
Equation of a line: y = mx + b
Function B: y = (4/3)x - 3
Theorems
Slope-intercept form of a linear equation
Suitable Grade Level
Grades 7-9