Math Problem Statement
Solution
The uploaded image contains a series of math problems related to writing equations of lines, identifying slopes, and solving word problems. I will analyze the contents and solve the problems provided.
Problem 1:
Write an equation in point-slope form for the line that satisfies each set of conditions.
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Slope = 3, passes through (2, -4)
Solution: The point-slope form of a line is given by: Substituting the values: Simplifying:
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Slope = -5, passes through (-9, 7)
Solution: Using the point-slope form: Simplifying:
Problem 2:
Write an equation in point-slope form for a line that passes through each set of points.
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(5, 1) and (3, 4)
Solution: First, calculate the slope between the two points: Using the point-slope form with point (5, 1):
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(-3, -7) and (-6, -4)
Solution: Calculate the slope : Using the point-slope form with point (-3, -7): Simplifying:
Problem 3:
Application Problems
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(23) Jennifer logs in twice as much as she plans to run for every swimming lap.
Note: The complete problem statement is not fully visible, but the idea seems to involve solving a proportional relationship or system of equations related to swimming and running.
If you want further details or have any questions, feel free to ask!
Questions to consider:
- How can the point-slope form be converted to slope-intercept form?
- What are the advantages of using point-slope form over slope-intercept form?
- How would the equations change if you were given the intercepts instead of points?
- How do you determine the slope of a line given two points?
- Can a line have an undefined slope, and if so, what would its equation look like?
Tip: Remember that when working with the point-slope form, the chosen point on the line does not affect the final equation, as long as the slope is correct!
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Math Problem Analysis
Mathematical Concepts
Equations of Lines
Point-Slope Form
Slope Calculation
Formulas
Point-Slope Form: y - y1 = m(x - x1)
Slope Calculation: m = (y2 - y1) / (x2 - x1)
Theorems
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Suitable Grade Level
Grades 9-12
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