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October 5th, 2016, 01:55 PM  #1 
Newbie Joined: Oct 2016 From: United States of America Posts: 7 Thanks: 0  Am I doing this right? Linear Equations using Arithmetic and Geometric Sequences
An Arithmetic Sequence of six numbers begins with 7 and ends with 27. A) Name two points on the graph of this sequence (_,7),(_,27) My Answer: (1,7,) (6,27) B) Plot the two points you named in 11 a and find the slope of the line connecting the points My Answer: Using y2y1/x2x1 I found the slope (m) as m=4 C) Use the slope to find the missing terms My answer: y=4x+3 (B=3 because when I find the difference between 27 and 7  20  and then divide by the difference between the 6 and 1  5  you get four and then subtract four from seven once to get the 0th term of the arithmetic sequence) and the points would then equal 3, u0=3, u1= 7 u2= 11 u3=15 u4=19 u5= 23 u6=27 D) Plot all the points and write the equation of the line that contains them. My Answer: N/A, I don't understand what this question is asking 
October 5th, 2016, 02:49 PM  #2  
Math Team Joined: Jul 2011 From: Texas Posts: 3,002 Thanks: 1588  Quote:
Quote:
y=4x+3 is the line that contains the points  

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arithmetic, equations, geometric, linear, sequences 
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