Math Problem Statement
Solution
To solve this problem, we need to graph the two linear equations on a coordinate system based on their slope-intercept form , where:
- is the slope.
- is the y-intercept.
Given Equations:
-
- Slope () =
- Y-intercept () =
-
- Slope () =
- Y-intercept () =
Steps to Graph:
-
For Equation (a):
- Plot the y-intercept on the y-axis.
- Use the slope to determine the rise over run:
- From the point , go up 2 units (rise) and right 5 units (run).
- Plot another point and draw a straight line through these two points.
-
For Equation (b):
- Plot the y-intercept on the y-axis.
- Use the slope (negative slope):
- From , go down 3 units (rise) and right 2 units (run).
- Plot another point and draw a straight line through these two points.
I will now create and display the graph.import matplotlib.pyplot as plt import numpy as np
Define the equations
x = np.linspace(-10, 10, 400)
First equation: y = (2/5)x - 2
y1 = (2/5) * x - 2
Second equation: y = -(3/2)x + 4
y2 = -(3/2) * x + 4
Plot the lines
plt.figure(figsize=(8, 6))
Plot first equation
plt.plot(x, y1, label=r"$y = \frac{2}{5}x - 2$", color="blue")
Plot second equation
plt.plot(x, y2, label=r"$y = -\frac{3}{2}x + 4$", color="red")
Add axes
plt.axhline(0, color='black',linewidth=0.8) plt.axvline(0, color='black',linewidth=0.8)
Add grid, labels, legend
plt.grid(color='gray', linestyle='--', linewidth=0.5) plt.title("Graph of Linear Functions") plt.xlabel("x-axis") plt.ylabel("y-axis") plt.legend() plt.show() <<ImageDisplayed>>successHere is the graph of the two linear functions:
- The blue line represents .
- The red line represents .
These lines are drawn based on their slopes and y-intercepts.
Let me know if you have any questions or need further details. Here are some related questions to deepen your understanding:
- How can you determine the slope from a linear equation in slope-intercept form?
- What happens to a line's graph if you change the slope to a steeper value?
- How can you find the intersection point of two linear equations algebraically?
- What is the significance of the y-intercept in a graph, and how can you use it?
- How would the graph change if you multiplied the slope of each equation by ?
Tip: When graphing, always verify points by substituting into the equation to ensure accuracy!
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Math Problem Analysis
Mathematical Concepts
Linear Equations
Graphing
Slope-Intercept Form
Formulas
y = mx + b
Theorems
Concept of Slope
Intercept Definition
Suitable Grade Level
Grades 8-10