Answer:
a = 15
Step-by-step explanation:
6 + 9 = 15
a = 15
15 - 6 = 9
yes
Answer:
f(-6) = -14
Step-by-step explanation:

Hope this helps you.
Answer: -5/3
Step-by-step explanation:
Use the slope formula: 
You substitute the numbers in and subtract to get -5/3.
Answer:
The answer is x=12.
Step-by-step explanation:
First, to solve this equation you need to isolate the x variable. To isolate the variable, you must, subtract the other term from both sides. Subtracting 18 from both sides, you are left with 3x = 36. Since 3 times x = 36, dividing both sides by 3 gets you, x=12.
-1/2
negative half
yea lol