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.

AlgebraLinear FunctionsSlopeEquations of LinesInteger 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 y=mx+by = mx + b such that its slope mm 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 (2,3)(-2, -3) and (0,5)(0, 5).
The slope mAm_A is calculated as:
mA=y2y1x2x1=5(3)0(2)=82=4m_A = \frac{y_2 - y_1}{x_2 - x_1} = \frac{5 - (-3)}{0 - (-2)} = \frac{8}{2} = 4
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 (0,2)(0, 2) and (2,4)(2, 4).
The slope mBm_B is calculated as:
mB=y2y1x2x1=4220=22=1m_B = \frac{y_2 - y_1}{x_2 - x_1} = \frac{4 - 2}{2 - 0} = \frac{2}{2} = 1
Alternatively, using points (2,0)(-2, 0) and (0,2)(0, 2):
mB=200(2)=22=1m_B = \frac{2 - 0}{0 - (-2)} = \frac{2}{2} = 1
We seek a slope mm for a third function such that 1<m<41 < m < 4. Since mm must be an integer, the possible values for mm 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 y=2x+0y = 2x + 0, which simplifies to y=2xy = 2x.

3. Final Answer

y=2x+0y = 2x + 0

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