Math Problem Statement
Solution
To graph the line with slope passing through the point , we need to follow these steps:
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Point-Slope Form: The equation of a line in point-slope form is:
where is the slope and is a point on the line. In this case, the point is and the slope . Substituting into the formula:
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Simplifying:
This is the equation of the line in slope-intercept form, , which tells us the slope is and the y-intercept is .
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Plotting the Graph:
- Start by plotting the point on the graph.
- From this point, use the slope , which means for every unit you move to the right (increase in ), you move units down (decrease in ).
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Finding another point:
- From , move right unit to , then move down units to . So, another point on the line is .
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Drawing the Line:
- Now, draw a straight line passing through the points and .
Would you like further details or clarification on how to graph the line?
Here are 5 related questions:
- How do you determine the slope of a line from its graph?
- What is the general form of a linear equation, and how does it relate to slope-intercept form?
- How would the graph change if the slope was positive instead of negative?
- How do you find the x-intercept of a line given its equation?
- What is the difference between point-slope form and slope-intercept form of a line?
Tip: When graphing lines, always remember that the slope tells you how much the line rises or falls as you move horizontally across the graph.
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Math Problem Analysis
Mathematical Concepts
Algebra
Graphing Linear Equations
Formulas
y - y1 = m(x - x1)
y = mx + b
Theorems
Slope-Intercept Form
Point-Slope Form
Suitable Grade Level
Grades 8-10