ABOUT THIS FORMULA:
X2 - X1
FOR PROBLEM: (2, 1) & (0, -5)
- Y2 is -5
- Y1 is 1
- X2 is 0
- X1 is 2
ABOUT POINT SLOPE FORM:
- y - Y1 = m(x - X1)
- Y1 & X1 is a point
- m represents the slope
- This form allows you to identify the slope & the point on the line
ABOUT SLOPE INTERCEPT FORM:
- y = mx + b
- m represents the slope
- b represents the y - intercept AKA the starting point
Y2 - Y1
X2 - X1
-5 - 1
0 - 2
-6
-2
SIMPLIFIED: -3 because both -6 & -2 can be divided by 2.
y - Y1 = m(x - X1)
y - -1 = -3(x - 2)
y + 1 = -3x + 6
- 1 - 1
y = -3x - 5 --- SLOPE INTERCEPT FORM
I do not see y = -3x - 5 as one of your answer choices.... So, I am sorry if I am incorrect...
