Answer:

Step-by-step explanation:
Given

(a): Write as additive inverse.
An additive inverse is of the form a + (-b)
In this case:


So, the expression can be represented as:

(b): Number line representation
When the expression in (a) is solved.
The result is:

This means that the number line must accommodate 7 and -1.
Having said that, options (b) and (c) are out because their range is 0 to 15 and this excludes -1.
Option (d) is a wrong representation of 
Hence, (a) is correct
Answer:
Linear equations that go in a straight line.
They are linear so they don’t curve like parabolas.
Step-by-step explanation:
See this picture. It will definitely help you!
Answer:
3/4 i believe
Step-by-step explanation:

So, the answer to this problem is
x = 9/2 or
x = 4.5.