Without the screenshot, it's fairly difficult to know what your teacher wants exactly. I found this similar problem
brainly.com/question/13583475
which might help. It sounds like you have 4 semicircles which can be thought of as a division problem 12/3 = 4. Note how I'm dividing by 3 which is the width of each section (eg: from 6 to 9 is 9-6 = 3 units)
Y=-7
Since it’s a straight line, there is no slope. So this is a zero slope line.
Answer:
Step-by-step explanation:
Given : Expression 
To find : Factor the expression ?
Solution :
The given expression is a quadratic function
the solution is 
On comparing with general form,
a=16, b=0, c=49
Substitute in the formula,
Factors are
Therefore,
Hello!
To solve an algebraic equation, you must isolate the variable on one side. We’ll begin by restating the given equation:
12 + 12n = -48
Now subtract 12 from both sides of the equation:
12n = -60
Divide both sides by 12:
n = -5
We have now proven that “n” is equal to (-5).
I hope this helps!