My Math Forum  

Go Back   My Math Forum > High School Math Forum > Algebra

Algebra Pre-Algebra and Basic Algebra Math Forum


Thanks Tree1Thanks
  • 1 Post By skeeter
Reply
 
LinkBack Thread Tools Display Modes
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 y2-y1/x2-x1 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
Imnomermaid112 is offline  
 
October 5th, 2016, 02:49 PM   #2
Math Team
 
skeeter's Avatar
 
Joined: Jul 2011
From: Texas

Posts: 3,002
Thanks: 1588

Quote:
C) Use the slope to find the missing terms
(1,7) (2,11) (3,15) (4,19) (5,23) (6,27)

Quote:
D) Plot all the points and write the equation of the line that contains them.
you answered this ...

y=4x+3 is the line that contains the points
Thanks from Imnomermaid112
skeeter is offline  
Reply

  My Math Forum > High School Math Forum > Algebra

Tags
arithmetic, equations, geometric, linear, sequences



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Arithmetic sequences in primes neelmodi Number Theory 3 May 11th, 2015 03:50 PM
Possible Geometric Sequences Evil Tomato Algebra 5 September 3rd, 2010 07:00 PM
Arithmetic Sequences brittosd Abstract Algebra 2 April 2nd, 2009 10:56 AM
sequences and series: Arithmetic Sequences cindyyo Algebra 2 August 20th, 2008 02:40 AM
Help once again using Arithmetic Sequences claudeluvstwilight Elementary Math 1 July 11th, 2008 04:48 AM





Copyright © 2019 My Math Forum. All rights reserved.