Question

A line has a slope of -5 and passes through (1,-1).which is the equation of the line in point - slope form?

Answer 1

The answer to the question is C) y + 1 = -5(x - 1)

Explanation:

In order to find this, we start by looking at the base form of point-slope form.

y - y1 = m(x - x1)

Now we put the slope in for m and the point in for (x1, y1)

y + 1 = -5(x - 1)

Answer 2

the equation of a line which has the slope m and passes through the point A(x1,y1) has the formula:
y-y1=m(x-x1)
in your case m= -5 ; A(x1;y1)=(1;-1)
y-(-1)= -5(x-1)
y+1= -5(x-1)
answer is c