how do you turn slope-intercept form to function notation. medal will be given and fanning

Question

anonymous · Answer

$$y=\frac{ -2 }{ 3 }x+400$$

anonymous · Answer

i dont understand how to make it a function notation

anonymous · Answer

heres an example 1. Part a.) Find the slope of the line that contains the points, (1, 2) and (2, 5). 

Part b.) Using the slope that you found in part a and one of the given points, write the equation of the line. Please write your final answer in slope-intercept form. 

2.Part a.) Write your own function in function notation. 
Using your function, find f(2). 

Part b.) Explain in your own words how to find the value of f(2) when you are given a function f(x). 

3. Part a.) Graph the system of inequalities on your own paper. There will be nothing to put in this answer box for part a. 
y > 3x + 1 
y _< -2/3x + 4 

Part b.) Prove your answer by substituting the (x, y) order pair into both inequalities. Show all work for each inequality 

4. Solve the following equation 
2x + 2(x + 3) = 2(x + 7)

anonymous · Answer

...that doesnt help me...$$y=\frac{ -2 }{ 3 }+400$$ is all i have to fiqure this out