Coleman Parry
02/09/2023 · Middle School
4. \( (0,-8) \) and \( (3,2) \)
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Step-by-step Solution
The problem provides two points: \( (0,-8) \) and \( (3,2) \).
These points can be used to find the equation of a line passing through them.
To find the equation of a line passing through two points \( (x_1, y_1) \) and \( (x_2, y_2) \), we can use the point-slope form of the equation of a line:
\[ y - y_1 = m(x - x_1) \]
where \( m \) is the slope of the line.
First, let's calculate the slope of the line passing through the points \( (0,-8) \) and \( (3,2) \):
\[ m = \frac{y_2 - y_1}{x_2 - x_1} \]
Substitute the given points into the formula to find the slope.
Calculate the value by following steps:
- step0: Calculate:
\(\frac{\left(2-\left(-8\right)\right)}{\left(3-0\right)}\)
- step1: Remove the parentheses:
\(\frac{2-\left(-8\right)}{3-0}\)
- step2: Remove the parentheses:
\(\frac{2+8}{3-0}\)
- step3: Add the numbers:
\(\frac{10}{3-0}\)
- step4: Remove 0:
\(\frac{10}{3}\)
The slope of the line passing through the points \( (0,-8) \) and \( (3,2) \) is \( \frac{10}{3} \) or approximately 3.33.
Now that we have the slope, we can choose one of the points to substitute into the point-slope form of the equation of a line to find the equation of the line passing through the two points. Let's choose the point \( (0,-8) \) and substitute the values into the equation:
\[ y - (-8) = \frac{10}{3}(x - 0) \]
Simplify the equation to get the final equation of the line passing through the points \( (0,-8) \) and \( (3,2) \).
To find the equation of the line in slope-intercept form, we need to rearrange the equation \( y + 8 = \frac{10}{3}x \) to isolate \( y \).
\[ y = \frac{10}{3}x - 8 \]
Therefore, the equation of the line passing through the points \( (0,-8) \) and \( (3,2) \) is \( y = \frac{10}{3}x - 8 \).
Quick Answer
The equation of the line passing through the points \( (0,-8) \) and \( (3,2) \) is \( y = \frac{10}{3}x - 8 \).
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