Slope Intercept Form ----- y = mx + b
Standard Form ----- ax + by = c
1. m = -6, b = 3
SIF: y = mx + b
y = -6x + 3 (just substitute)
SF: y = -6x + 3
transpose variables to the other side such that it'll have the format of sf
6x + y = 3
2. (2, -3) ; b = 1
SIF: y = mx + b
-3 = 2m + 1
-4 = 2m
---- -----
2 2
m = -2 ---- Now we have m then substitute so the answer is
y = -2x + 1.
SF: y = -2x + 1
2x + y = 1
3. (2, -3) and (0, 1)
SIF: (solve for m)
change in y
m = -----------------
change in x
1 + 3
= --------
0 - 2
4
= ---------- or -2 so therefore, m = -2
- 2
y = mx + b
1 = -2(0) + b SIF: y = -2x + 1
1 = b
b = 1
SF: y = -2x + 1
2x + y = 1
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--Good night--
