Math Problem Statement
Solution
Let me extract the mathematical problem from the image and provide a solution.The problem in the image asks to:
- Write the equation of a line in slope-intercept form with the given slope and -intercept .
- Graph the line.
Step 1: Write the Equation in Slope-Intercept Form
The slope-intercept form of a line is: where:
- is the slope
- is the -intercept.
Here, and . Substituting these values, the equation becomes:
Step 2: Graph the Line
I will plot the graph for the line . One moment while I generate it. numpy as np import matplotlib.pyplot as plt
Define the equation of the line
def line_eq(x): return (3/2) * x - 1
Generate x values
x = np.linspace(-5, 5, 100) y = line_eq(x)
Plot the line
plt.figure(figsize=(8, 6)) plt.plot(x, y, label=r"$y = \frac{3}{2}x - 1$", color='blue') plt.axhline(0, color='black', linewidth=0.8, linestyle='--') # x-axis plt.axvline(0, color='black', linewidth=0.8, linestyle='--') # y-axis
Highlight the y-intercept and a point from slope calculation
plt.scatter([0], [-1], color='red', label="y-intercept (-1)") # y-intercept plt.scatter([2], [2], color='green', label="Point from slope (2, 2)") # Using slope to mark (2, 2)
Labels and legend
plt.title("Graph of the Line $y = \frac{3}{2}x - 1$") plt.xlabel("x") plt.ylabel("y") plt.grid(color='gray', linestyle='--', linewidth=0.5) plt.legend() plt.show()### Final Answer: The equation of the line is:
The graph above represents the line. It includes:
- The -intercept at .
- Another point on the line at , calculated using the slope .
Do you have any questions or need more details?
Related Questions:
- How is the slope calculated from two points on a line?
- How do we verify if a given point lies on this line?
- What happens to the graph if the slope is negative?
- How would you write the equation if the slope and -intercept were fractions?
- Can you explain how to convert this equation to standard form?
Tip: For consistent graphing, always mark the intercepts and use the slope to determine additional points!
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Math Problem Analysis
Mathematical Concepts
Linear Equations
Slope-Intercept Form
Graphing Linear Functions
Formulas
y = mx + b
Theorems
-
Suitable Grade Level
Grades 8-10