Math Problem Statement
Graph the line with the equation y, equals, one quarter, x, plus, 7y=41x+7
Solution
The given equation is .
To graph this line, follow these steps:
-
Identify the slope () and the y-intercept ().
- The slope means that for every 4 units you move to the right, the line goes up 1 unit.
- The y-intercept is the point where the line crosses the y-axis ().
-
Generate additional points using the slope:
- From , move 4 units to the right () and 1 unit up (). This gives the point .
-
Plot at least two points and draw a straight line through them.
I will plot the graph for you. matplotlib.pyplot as plt import numpy as np
Define the equation y = (1/4)x + 7
x = np.linspace(-20, 20, 400) # Generate x values y = (1/4) * x + 7 # Calculate corresponding y values
Plot the line
plt.figure(figsize=(8, 6)) plt.plot(x, y, label=r"$y = \frac{1}{4}x + 7$", color='blue')
Highlight specific points
plt.scatter([0, 4], [7, 8], color='red', label="Key Points (0,7) & (4,8)")
Add labels and title
plt.axhline(0, color='black',linewidth=0.5) # x-axis plt.axvline(0, color='black',linewidth=0.5) # y-axis plt.grid(color = 'gray', linestyle = '--', linewidth = 0.5) plt.title("Graph of y = (1/4)x + 7") plt.xlabel("x-axis") plt.ylabel("y-axis") plt.legend()
Show the plot
plt.show()Here is the graph of the line . The red points and are key points calculated from the slope and intercept.
Would you like further details or calculations?
Here are 5 related questions for practice:
- How would the graph change if the slope were ?
- What happens to the graph if the y-intercept changes to 10?
- How would you write the equation if the line passes through ?
- What is the x-intercept of the current line?
- Can you identify two other points on the line without using the slope?
Tip: Always identify the slope and intercept to quickly sketch a line.
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
Graphing
Formulas
y = mx + b (Slope-Intercept Form)
Theorems
Slope-Intercept Form Theorem
Suitable Grade Level
Grades 8-10