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Dmitry [639]
3 years ago
11

Write an equation in slope-intercept form for each graph shown. Please help!!!!!!!

Mathematics
2 answers:
dmitriy555 [2]3 years ago
8 0

I can help! As you may know y = mx+b is our slope-intercept equation, so let's plug some numbers into where they need to be.


The easiest part is finding B (the y-intercept) which is -3. Now, our equation is y = mx+(-3) or, as we will properly write it, y = mx-3


Let's find the slope (m) now! Let's take the first coordinate given (0, -3) and count the rise over the run that takes us to the next coordinate (2, 1)


Rise (going up) is four, and the run (across) is two. Making our slope 4/2, which is an improper fraction, so let's simplify it to 2. Now, we have our "m,"


That's all you need for this equation, since the y and x are left as they are.


y = 2x-3 is your answer


stiv31 [10]3 years ago
3 0

Answer:

y = 2x-3

Step-by-step explanation:

We have 2 points so we can find the slope

m = (y2-y1)/(x2-x1)

   = (1--3)/(2-0)

   = (1+3)/(2-0)

   =4/2

   = 2

The y intercept (where x=0) is -3

We can use the slope intercept form of the equation

y= mx+b  where m is the slope and b is the y intercept

y = 2x-3

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