Math Problem Statement

Use the graph to the right to write an equation of the line. Type your answer in point-slope form. Use integers or simplified fractions for any numbers in the equation.

Solution

From the image provided, the graph shows a line with points labeled (3,4)(3, 4) and (5,5)(5, 5). Let's determine the equation of the line in point-slope form.


Step 1: Find the slope mm

The formula for the slope mm is: m=y2y1x2x1m = \frac{y_2 - y_1}{x_2 - x_1}

Substitute (x1,y1)=(3,4)(x_1, y_1) = (3, 4) and (x2,y2)=(5,5)(x_2, y_2) = (5, 5): m=5453=12m = \frac{5 - 4}{5 - 3} = \frac{1}{2}

So, the slope is m=12m = \frac{1}{2}.


Step 2: Use the point-slope form

The point-slope form of a line is: yy1=m(xx1)y - y_1 = m(x - x_1)

Using the point (3,4)(3, 4) and m=12m = \frac{1}{2}: y4=12(x3)y - 4 = \frac{1}{2}(x - 3)

This is the equation of the line in point-slope form.


Final Answer:

The equation is: y4=12(x3)y - 4 = \frac{1}{2}(x - 3)

Would you like more details or additional examples?


Related Questions:

  1. How do you convert a point-slope form equation to slope-intercept form?
  2. What are other ways to write the equation of a line, such as in standard form?
  3. How do you determine the slope if only a graph is given, without labeled points?
  4. Why is point-slope form helpful compared to slope-intercept form?
  5. What is the significance of the slope in real-world applications?

Tip:

Always double-check the points on the graph and ensure you subtract y2y1y_2 - y_1 and x2x1x_2 - x_1 in the correct order to avoid sign errors.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Point-Slope Form

Formulas

Slope formula: m = (y2 - y1) / (x2 - x1)
Point-slope form: y - y1 = m(x - x1)

Theorems

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Suitable Grade Level

Grades 8-10