Answer:
Step 1
Step-by-step explanation:
You distributed the 2 in 2(x-4) to get 2x-8
Y=mx+b is what I learned and point slope is y-y1=m*x-x1
a is given to us so just plug a into the first equation:
b-3 - 3b =9
Add 3 to both sides:
b-3b=12
Combine like terms:
-2b=12
Divide by -2 to get b by itself:
b=-6
The only answer with b as -6 is the first one, (-9,-6)
Answer:
3 classes
Step-by-step explanation:
The teacher can schedule 3 classes in a night because 4 1/2 divided by 1 1/2 is 3.
hope this helps!!