Math Problem Statement
Solution
Let's analyze the table and the required components for this exercise step by step:
Given Table:
Ordered Pair | ||
---|---|---|
-2 | 8 | (-2, 8) |
-1 | 6 | (-1, 6) |
0 | 4 | (0, 4) |
1 | 2 | (1, 2) |
2 | 0 | (2, 0) |
Step 1: Identify the Pattern
We can observe that for each step of increase in (incrementing by 1), decreases by 2. This suggests that the function is linear.
Step 2: Determine the Formula for
To find the symbolic rule for the function, we use the slope-intercept form of a line: where is the slope, and is the y-intercept.
-
Slope (m): The slope is the change in over the change in . Between points (-2, 8) and (-1, 6), the change in is -2, and the change in is 1. Therefore, the slope is:
-
Y-intercept (b): The y-intercept is the value of when . From the table, we see that when , . Thus, .
So, the formula for is:
Step 3: Graph the Function
- The points to plot are: (-2, 8), (-1, 6), (0, 4), (1, 2), and (2, 0).
- The graph will show a straight line with a slope of -2, passing through the y-axis at .
Step 4: Verbal Description
This function is linear. The relationship between the input () and output () is that for every unit increase in , the value of decreases by 2.
Summary:
- Symbolic Rule:
- Verbal Description: The function is linear, and as increases by 1, decreases by 2.
Would you like me to explain how to plot these points on the graph?
Here are 5 related questions:
- How can you verify that the function fits all the points in the table?
- What happens to the value of if increases beyond 2?
- How would the graph change if the slope were positive instead of negative?
- What would the function look like if the y-intercept were 0?
- How does the slope of -2 affect the steepness of the line?
Tip: Always check if your graph passes through all plotted points to ensure accuracy when graphing a linear function.
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Math Problem Analysis
Mathematical Concepts
Linear Functions
Slope-Intercept Form
Graphing Functions
Formulas
p(t) = mt + b
Theorems
Linear Equation
Suitable Grade Level
Grades 7-9