What is the linear equation for the two graph points (1,7) and (2,9)

What is the linear equation for the two graph points (1,7) and (2,9)?
in Other Math Topics by

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

Find the slope=(9-7)/(2-1)=2. The linear equation has the form y=2x+c. To find c plug in a point, say, (1,7):

7=2+c making c=5, so y=2x+5 is the equation. Check by plugging in the other point (2,9):

9=4+5 is true so the equation fits: y=2x+5.

by Top Rated User (1.2m points)

Related questions

1 answer
help solving equation with fraction
asked Mar 15, 2013 in Algebra 1 Answers by anonymous | 687 views
1 answer
x-y=2. graph the linear equation
asked Dec 1, 2013 in Algebra 1 Answers by anonymous | 902 views
1 answer
Graph the following linear equation: y=-1
asked Oct 31, 2012 in Algebra 1 Answers by anonymous | 1.1k views
1 answer
how would you graph the linear equation x+y=14?
asked Sep 26, 2012 in Algebra 1 Answers by anonymous | 727 views
1 answer
how do you graph a linear equation y=12
asked Mar 30, 2012 in Algebra 1 Answers by anonymous | 863 views
1 answer
Graph the linear equation
asked Jan 18, 2012 in Algebra 1 Answers by anonymous | 1.2k views
1 answer
how do i graph a linear equation
asked Jan 9, 2012 in Algebra 1 Answers by anonymous | 1.1k views
1 answer
how to graph a linear equation
asked Jan 9, 2012 in Algebra 1 Answers by anonymous | 1.1k views
Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!

Most popular questions within the last 3000 days

  1. 50+50-25X0+2+2= (19)
  2. it takes 10 road workers 5 days to complete a road repair when working 2 hours a day.Working at the same pace,how many days will it take 2 people working 5 hours a day to finish it? (3)
  3. Solve 15 -1(12÷4+1)? (4)
  4. 8:4(5+2) (3)
  5. How can i represent 1/3; 3/3; 7/3; 10/3 and 15/3 on a number line? (1)

Most popular tags

87,515 questions
100,352 answers
2,420 comments
768,976 users