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Concept 1: How to graph a line?Nadine, Concept 3- How to use y=mx+b? By:…

- - - - https://youtu.be/IL3UCuXrUzE
- - - - Horizontal Line
        
        Horizontal and Vertical lines are both lines that are used to determine where to plot the given points
    - - Vertical Line
        
        According to the math book, "All vertical lines have equations of the form x = a.
        The gradient of a vertical line is undefined."
  - - - orgins
        
        values
        
        Explanations
        
        To start plotting and graphing you have to identify the orgin, after you successfully identify it you then start plotting the points you have. You first determine which quadrant the points will fall under. After that, you first start by looking at the x-axis and go to the number being stated then you move to the y-axis and go up till you find the number being asked.
        
        https://youtu.be/oaPkccxR5o8
      - Quadrant III
      - Quadrant II
      - Quadrant IV
      - Quadrant I
- - - - 4 is the answer because the line passes directly through point 4 in the Y axis
        
        The y axis is the vertical line |
        
        https://www.youtube.com/watch?v=_-LvA1xlQLs
        
        In order to find the y intercept you have to see where the line is nearest in the vertical line |
        
        For example: if you find the line exactly on 3 and it's on the vertical line then 3 is your y intercept
- - - - The slope of a line is a calculation of its steepness. :
        
        : :
        
        When you find the line exactly on 2 points you go up(rise) and go on the side(run) to connect to the 2 lines and find the slope by how many times you raised and ran
        
        First you find which place the line is exactly on, then you mark them and go up(rise) and count until you get to the same level of the other point. Then you go to the side (run) and count until you get to the other point and whatever you got is your slope.
        
        1 more item...
- - - - After gathering your slope in step 2 and step 3 you would go back
        To step one and see what y=mx+ b means you'd rewrite it but with your answer.
- - - - B=y intercept
        
        Y= output
        
        X=input
        
        : :
        
        : :
- - - - how far across
        
        x determines the y value and x is an unknown value at first.
    - - how far it’s going up
        
        The value of y at the point where the line crosses the y axis is the y-intercept of this line.
    - - Slope or gradient (how steep the line is)
        
        m = change in y/change in x
    - - y’s value when x=0
        
        Simply look for the point where the line crosses the Y axis.
- - - - Slope-intercept equations are a type of linear equation. The general structure is as follows.
    - - Standard type is a convenient way to write down large or small numbers.
    - - Point-slope equations are a type of two-variable linear equation.
- - - - Using the gradient formula
        
        Gradient formula: m= rise/run= y2 - y1/ x2 - x1
        
        slope = change in y/change in x
      - Considering the horizontal and vertical steps :