For question 3, the answer is f(x)=3x-4.
In question 3, if -7 is f(x), and it is 3x-4, the answer is -1; if -7 is f(x), and the answer is 4x-3, the answer is -1; if -7 is f(x), and it is 1/2x+3, answer is -20; if -7 is f(x), and it is 3x+1/2, the answer is -5/2.
But, if -4 is f(x), and it is 3x-4, the answer is 0; if -4 is f(x), and it is 4x-3, the answer is -1/4.
So f(x)=3x-4 is the answer for question 3.
For question 4, the answer is the last choice.
Like the one above 3x was the rate and -4 is the initial value.
So for this one, 2/3 is the rate and -2 is the initial value.
Option D: 
is the equation of line in point - slope form
Explanation:
Given that the slope is 
and the point 
We need to determine the equation of the line in point - slope form.
The point - slope form can be determined using the formula,
Let us substitute the point and the slope in the above formula.
Thus, we have,
Simplifying the terms, we get,
Thus, the equation of the line in point - slope form is
Therefore, Option D is the correct answer.
Answer:
-4m-3
Step-by-step explanation:
I'll go thru the problem and then you fill in the blanks yourself.
8 2
________
6 / 4 9 2
- 4 8
-----------------
1 2
1 2
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0
