how do u solve this agebra equation step by step

User Generated

nheryvna zvuhg

Mathematics

Description

an equation that shows the pattern among this set of ordered pairs (2,5), (4,9), (5,11), (7,15) use slope-intercept form y = mx + b

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Explanation & Answer

ΔX X Y ΔY

   2 [2 5] 4

         [4 9]      

  1 [5 11] 2

  2 [7 15] 4

 

 

 ΔY /ΔX is given , the difference between coordinates of every 2 consecutive point is given

  

     in each case equal 4/2 = 2/1=2

 

    So these points are located on a line, with slope =2. 

 

     Y = 2x +b

 

  can place coordinate of any one of the points and find out the equation:

 

      5 = 2(2) + b

      b =1

 

      Y = 2X + 1

Hope it helps and choose me best


Anonymous
I was having a hard time with this subject, and this was a great help.

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