start with y= m(x+9)
Use the distributive property:
y= mx+9m
Now you want x to decrease by 6:
so y ' = m(x-6) + 9m
Use distributive property again:
y'= mx - 6m + 9m
y' = (mx+9m) - 6m
y' = y - 6m
So the value of y decreases by 6m.
Answer:
120
Step-by-step explanation:
The common rule is (x - 1, y + 3) can be used to describe the translation.
Step-by-step explanation:
Step 1:
The point J (-3, -4) becomes
(-4, -1).
In order to write the rule for translation from J to
, we subtract the x coordinate of J from
and subtract the y coordinate of J from
.
The x coordinate 
The y coordinate 
Step 2:
So from the calculations, we get that the x coordinate is subtracted by 1 i.e.
and the y coordinate is increased by 3 i.e.
.
So the common rule is (x - 1, y + 3).