Math Problem Statement

Solve this question

Solution

To solve the problem and determine which of the statements is true about the graph of the equation 5x+4y=15x + 4y = 1, we'll need to find the slope and intercepts of the line.

The given equation is in standard form Ax+By=CAx + By = C. To find the slope and intercepts, we can convert it to slope-intercept form y=mx+by = mx + b, where mm is the slope and bb is the y-intercept.

Step 1: Find the Slope

Convert the equation 5x+4y=15x + 4y = 1 to the slope-intercept form:

4y=5x+14y = -5x + 1 y=54x+14y = -\frac{5}{4}x + \frac{1}{4}

From this form, we can see that the slope mm is 54-\frac{5}{4}.

Step 2: Find the y-intercept

In the slope-intercept form y=mx+by = mx + b, the y-intercept bb is 14\frac{1}{4}.

Step 3: Find the x-intercept

To find the x-intercept, set y=0y = 0 in the original equation:

5x+4(0)=15x + 4(0) = 1 5x=15x = 1 x=15x = \frac{1}{5}

Conclusion

We can now compare these results with the given options:

  • Option A: The graph's y-intercept is 15\frac{1}{5}. (Incorrect, y-intercept is 14\frac{1}{4}).
  • Option B: The graph's x-intercept is 14\frac{1}{4}. (Incorrect, x-intercept is 15\frac{1}{5}).
  • Option C: The graph has a slope of 54\frac{5}{4}. (Incorrect, slope is 54-\frac{5}{4}).
  • Option D: The graph has a slope of 45-\frac{4}{5}. (Incorrect, slope is 54-\frac{5}{4}).

None of the options directly match the calculated values. Given these calculations:

  • Correct Slope: 54-\frac{5}{4}
  • y-intercept: 14\frac{1}{4}
  • x-intercept: 15\frac{1}{5}

It seems there might be a typo or mistake in the provided options. If you have any more questions or need further details, please let me know.

Here are some additional questions you might find useful:

  1. How do you convert an equation from standard form to slope-intercept form?
  2. What is the importance of the slope in a linear equation?
  3. How can you determine the x-intercept of a line from its equation?
  4. What is the significance of the y-intercept in graphing linear equations?
  5. How can you graph a linear equation using its slope and intercepts?

Tip: Always double-check your work by verifying that the calculated slope and intercepts match the given equation when converted to different forms.

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Slope
Intercepts

Formulas

Slope-intercept form of a line: y = mx + b

Theorems

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Suitable Grade Level

Grades 7-9