Question

which equation is the point-slope equation of the line that passes through the points (-2,-1) and (7,-4)?

Answer 1

B (for question 7)

Explanation:

To find the slope, we use the equation
`m=(y_(2) -y_(1) )/(x_(2) -x_(1) )`.

m = (-4+1)/(7+2) = -3/9 = -1/3

Since B is the only option that would give a slope of -1/3, B must be the answer.

(you can use this same method for question 8)