Question

What is the point-slope form of a line with slope-3 that contains the point

(10,-1)?
O A. y+1 = 3(x+10)
O B. y+ 1 = 3(x-10)
O C. x+ 1 =-3(y-10)
OD. y+ 1 = -3(x-10)

Answer 1

D.)
`y+1=-3(x-10)`

Explanation:

The original point slope form equation is as follows:

`y - y_1 = m(x-x_1)`

When you input a negative or positive value into the equation, the sign may or may not change. In this case, we input a negative y value -- this caused the sign to change to '+1' rather than stay at '-1'