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Please help me 20 points

Please help me 20 points-example-1
User EdH
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1 Answer

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Answer:

y = 4/3x + 4

Explanation:

There are multiple ways to get the slope of a line.

Counting Method

1.) Find two spots where the line crosses exactly through the point.

(-3, 0) (0, 4)

2.) Count up/down from the first spot to the second step, record what you get

You would count up 4 times

3.) Count from left/right from where you left off, record what you get.

You would move to the right 3 times

4.) When you counted up/down, that gives you the y. If you go up then it's positive, if you go down then it's negative. When you counted left/right, that gives you the x. If you go to the right then it's positive, to the left then it's negative. Put the y and x in a fraction, the y being the numerator (top number) and the x being the denominator (bottom number). If possible, simplify.

4/3

5.) You've found the slope (4/3), now you need to find the y-intercept (the + __) in the question. The y-intercept is where the line crosses the y-axis. This is easy to find, just find where it crosses. This case, 4. So you get + 4.

Rise over Run Method

1.) Find two spots where the line crosses exactly through the point.

(-3, 0) (0, 4)

2.) Use the formula y2/x2 - y1/x1. For the points we have, -3 is x1, 0 is y1, 0 is x2, and 4 is y2. Substitute, 4/0 - 0/-3. Only subtract the y's with y's and the x's with x's. You get 4/3.

User Arien
by
8.2k points

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