We are given data for two linear functions, Function A (in a table) and Function B (in a graph). We need to find the slopes of both functions. Then we need to write the equation of a third linear function $y = mx + b$ such that its slope $m$ is an integer that falls between the slopes of Function A and Function B. We are also restricted to using only integer values.
2025/3/12
1. Problem Description
We are given data for two linear functions, Function A (in a table) and Function B (in a graph). We need to find the slopes of both functions. Then we need to write the equation of a third linear function such that its slope is an integer that falls between the slopes of Function A and Function B. We are also restricted to using only integer values.
2. Solution Steps
First, we find the slope of Function A. We can use the points and .
The slope is calculated as:
Next, we find the slope of Function B from the graph. We can pick two points that appear to lie on the line, such as and .
The slope is calculated as:
Alternatively, using points and :
We seek a slope for a third function such that . Since must be an integer, the possible values for are 2 and
3. We can arbitrarily choose $m = 2$. Since the problem does not specify the y-intercept $b$, we can choose any integer value for $b$. A simple choice is $b = 0$.
So, a possible equation for the third function is , which simplifies to .