Math Problem Statement
Find the equation (in terms of x) of the line through the points (-4,6) and (1,-4).
y=
Solution
To find the equation of the line passing through the points and , we can use the point-slope form of the equation of a line:
where is the slope of the line, and is one of the points on the line.
Step 1: Find the Slope ()
The slope is calculated as:
Using the points and :
Step 2: Use the Point-Slope Form
Now, substitute and one of the points, say , into the point-slope form:
Simplify the equation:
Step 3: Simplify to the Slope-Intercept Form ()
Expand and simplify:
Subtract 4 from both sides:
So, the equation of the line in terms of is:
Would you like more details or have any questions?
Here are some related questions to explore:
- How would you find the equation of a line given its slope and one point?
- What is the general form of the equation of a line?
- How do you determine if two lines are parallel or perpendicular?
- Can you find the y-intercept of a line given two points?
- How does changing the slope affect the steepness of a line?
Tip: When calculating the slope between two points, remember that a negative slope means the line is decreasing (going downwards) as it moves from left to right.
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
Slope-Intercept Form
Formulas
Slope formula m = (y2 - y1) / (x2 - x1)
Point-slope form y - y1 = m(x - x1)
Slope-intercept form y = mx + b
Theorems
Slope formula
Point-slope theorem
Suitable Grade Level
Grades 8-10
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