Question 1: cx + by = a
----------------------------------------------------
Rearrange it into the y = mx + c format
----------------------------------------------------
by = -cx + a
y = - c/b + a/b
----------------------------------------------------
Answer: y-intercept = (0, a/b)
----------------------------------------------------
_________________________________________________
Question 2: bx + ay = c
----------------------------------------------------
Rearrange it into the y = mx + c format
----------------------------------------------------
ay = bx + c
y = b/ax + c/a
----------------------------------------------------
Answer: y-intercept = (0, c/a)
----------------------------------------------------
_________________________________________________
Question 3. ax + by = c
----------------------------------------------------
Rearrange it into the y = mx + c format
----------------------------------------------------
by = -ax + c
y = -a/bx + c/b
----------------------------------------------------
Answer: y-intercept = (0, c/b)
----------------------------------------------------
_________________________________________________
4. cx + ay = b
----------------------------------------------------
Rearrange it into the y = mx + c format
----------------------------------------------------
ay = -cx + b
y = -c/ax + b/a
----------------------------------------------------
Answer: y-intercept = (0, b/a)
----------------------------------------------------
