Welcome to Westonci.ca, the place where your questions are answered by a community of knowledgeable contributors. Experience the convenience of getting reliable answers to your questions from a vast network of knowledgeable experts. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform.
Sagot :
To write the point-slope form of the equation of a line that passes through the points [tex]\((-4, 7)\)[/tex] and [tex]\( (5, -3)\)[/tex], we need to follow these steps:
1. Find the slope (m) of the line: The slope [tex]\(m\)[/tex] is calculated using the formula:
[tex]\[ m = \frac{y_2 - y_1}{x_2 - x_1} \][/tex]
Here, the points are [tex]\((x_1, y_1) = (-4, 7)\)[/tex] and [tex]\((x_2, y_2) = (5, -3)\)[/tex].
Plugging in the values, we get:
[tex]\[ m = \frac{-3 - 7}{5 + 4} = \frac{-10}{9} \][/tex]
2. Determine the point-slope form: The point-slope form of the equation of a line is given by:
[tex]\[ y - y_1 = m(x - x_1) \][/tex]
3. Substitute one of the points and the slope into the point-slope form:
We use the point [tex]\((-4, 7)\)[/tex] and the slope [tex]\(m = -\frac{10}{9}\)[/tex].
Substituting these values into the point-slope form, we have:
[tex]\[ y - 7 = -\frac{10}{9}(x - (-4)) \][/tex]
4. Simplify the equation:
Since [tex]\(x - (-4)\)[/tex] simplifies to [tex]\(x + 4\)[/tex], the equation becomes:
[tex]\[ y - 7 = -\frac{10}{9}(x + 4) \][/tex]
So, the point-slope form of the equation for the line passing through the points [tex]\((-4, 7)\)[/tex] and [tex]\((5, -3)\)[/tex] is:
[tex]\[ y - 7 = -\frac{10}{9}(x + 4) \][/tex]
Therefore, the correct answer is:
[tex]\[ \boxed{D} \][/tex]
1. Find the slope (m) of the line: The slope [tex]\(m\)[/tex] is calculated using the formula:
[tex]\[ m = \frac{y_2 - y_1}{x_2 - x_1} \][/tex]
Here, the points are [tex]\((x_1, y_1) = (-4, 7)\)[/tex] and [tex]\((x_2, y_2) = (5, -3)\)[/tex].
Plugging in the values, we get:
[tex]\[ m = \frac{-3 - 7}{5 + 4} = \frac{-10}{9} \][/tex]
2. Determine the point-slope form: The point-slope form of the equation of a line is given by:
[tex]\[ y - y_1 = m(x - x_1) \][/tex]
3. Substitute one of the points and the slope into the point-slope form:
We use the point [tex]\((-4, 7)\)[/tex] and the slope [tex]\(m = -\frac{10}{9}\)[/tex].
Substituting these values into the point-slope form, we have:
[tex]\[ y - 7 = -\frac{10}{9}(x - (-4)) \][/tex]
4. Simplify the equation:
Since [tex]\(x - (-4)\)[/tex] simplifies to [tex]\(x + 4\)[/tex], the equation becomes:
[tex]\[ y - 7 = -\frac{10}{9}(x + 4) \][/tex]
So, the point-slope form of the equation for the line passing through the points [tex]\((-4, 7)\)[/tex] and [tex]\((5, -3)\)[/tex] is:
[tex]\[ y - 7 = -\frac{10}{9}(x + 4) \][/tex]
Therefore, the correct answer is:
[tex]\[ \boxed{D} \][/tex]
Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. Thank you for using Westonci.ca. Come back for more in-depth answers to all your queries.