Question

Question 1 of 10

2 Points
The slope of the line below is – 3. Use the coordinates of the labeled point to
find a point-slope equation of the line.
(5.-7)

Answer 1

`\large\boxed{y+7=-3(x-5)}`

Explanation:

`\text{The point-slope form of an equation of a line:}\\\\y-y_1=m(x-x_1)\\\\m-slope\\(x_1,\ y_2)-point\\\\\text{We have}\ m=-3\ \text{and}\ (5,\ -7).\\\text{Substitute:}\\\\y-(-7)=-3(x-5)\\y+7=-3(x-5)`