Math Problem Statement
find the equation of this function
Solution
The graph shows a straight line passing through two points. To find the equation of the line, we need to:
- Identify the coordinates of two points on the line.
- Use the slope-intercept form of a line equation: , where is the slope and is the y-intercept.
Step 1: Identify Points
The two points on the line are approximately:
- Point 1:
- Point 2:
Step 2: Calculate the Slope
The slope is calculated as: Using the points and :
Step 3: Equation in Point-Slope Form
Using point-slope form of the equation, we substitute one point (let's use ) and the slope:
This is the equation of the line. Let me know if you want more details or have any questions!
Here are some related questions:
- How do we calculate the y-intercept from the equation of a line?
- What is the difference between point-slope form and slope-intercept form?
- Can we use other points on the graph to confirm the equation?
- How do we interpret the slope in real-world situations?
- What happens if the line is vertical or horizontal?
Tip: For any straight line, the slope is constant, which means any two points can be used to find the equation!
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Functions
Formulas
Slope formula m = (y2 - y1) / (x2 - x1)
Slope-intercept form y = mx + b
Theorems
Slope of a line theorem
Suitable Grade Level
Grades 8-10
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