Question

The slope of the line below is -4. use coordinates of the labeled point to find a point-slope equation of the line.

Answer 1

Answer: D)  y + 9 = -4(x -4)  

Step-by-step explanation:

The point-slope formula says that   y - b = m( x - a)  Where b is the y coordinate of a point, m is the slope and a is the x coordinate of the same point. Given the point (4,-9)  the x coordinate is 4 and the y coordinate is -9.

y - (-9) = -4(x - 4)   Reduce it.

y + 9 = -4(x -4)