You have to use Point Slope Form...
ABOUT POINT SLOPE FORM:
- y - Y1 = m (x - X1)
- Y1 & X1 is a point on the line
- The form allows you to identify the slope & the point on the line
ABOUT PROBLEM:
- Since -1 is the slope, that means it represents m in the point slope formula
- -2 represents X1 in the point slope formula
- -1 represents Y1 in the point slope formula
y - Y1 = m (x - X1)
y - -1 = -1 (x - -2) --- In Point Slope Form
Hope this helps you!!! :)
