Answer:The Answer is A
Step-by-step explanation:
Answer:

Step-by-step explanation:
I am assuming that you are asking what is [x] - 5 if f(86).
When you have this kind of question, what you do is to substitute the variable inside the parenthesis, so like what is says, f(x). If the question replaces the variable x with 86, that means you input the number into the equation.
So [x] - 5, if f(86).
Substitute:
86 - 5

Formula is Ya-Yb/Xa-Xb
The slope is 13/2 but in decimal form it’s 6.5.
11+5=16 3x2= 6 8x1= 8 so add it together, 16 + 6 + 8 = 30.
Answer:
what does the picture say?
Step-by-step explanation: