Finite Mathematics question 10

Mathematics
Tutor: None Selected Time limit: 1 Day

Find an equation of the line that passes through the points (1, 4) and ( -7, -4)
Oct 12th, 2015

Thank you for the opportunity to help you with your question!

First find the gradient =dy/dx

=4 -(-4)/1 -(-7)

8/8 = 1

gradient = 1

To find the equation,  take (x,y) as one coordinate and the second coordinate can be either of the two given 

So the coordinates are (x,y) , (1 ,4)

Y-4/x-1=1

Cross multiplication 

Y-4=1 (x-1)

y-4=x-1

the equation must be in the form of y=x +c

Y= x+3


Please let me know if you need any clarification. I'm always happy to answer your questions. Kindly ask you to make me your tutor and you will be assured of best results
Oct 12th, 2015

Did you know? You can earn $20 for every friend you invite to Studypool!
Click here to
Refer a Friend
...
Oct 12th, 2015
...
Oct 12th, 2015
May 28th, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer