Question

The slope of the line below is -4. Use the coordinates of the labeled point to find the point-slope equation of the line. (4,-9)
A. y + 9 = 4(x - 4)
B. y + 9 = -4(x - 4)
C. y - 9 = -4(x + 4)
D. y - 9 = 4(x + 4)
I think its C.

Answer 1

again: \(\large\color{slate}{ y-y_1=m(x-x_1) }\)

Answer 2

\(\large\color{slate}{ (\color{red}{x_1},\color{blue}{y_1}) }\) in your case is: \(\large\color{slate}{ (\color{red}{4},\color{blue}{-9}) }\)

Answer 3

Ok I change my mind, I think it's B. because A and D do not work because their not a -4 their a positive 4.

Answer 4

yes, it is B

Answer 5

Ok!