OpenStudy (anonymous):

:)

6 years ago
hartnn (hartnn):

can u find equation of line when two points on it are given ?

6 years ago
hartnn (hartnn):

yes,its not y^2 its y2 which means y co-ordinate of 2nd point,here -4 so 1st find the slope of line through points(4,6) and(-1,-4) it will be same for the required line as these two lines are parallel...so u will get slope of your line

6 years ago
hartnn (hartnn):

yes,that is correct for 2nd find the equation of the line

6 years ago
hartnn (hartnn):

2nd question is asking you for c in y=mx+c for that u need to first find the equation y=mx+c and then put x=0 u know how to find that?

6 years ago
hartnn (hartnn):

okk,first find out the slope and give me,u know the formula

6 years ago
hartnn (hartnn):

yes it is :) so slope m=6/8=3/4 so you got m in y=mx+c u have any idea,how to find c now?

6 years ago
hartnn (hartnn):

nopes,lets us find the equation first

6 years ago
hartnn (hartnn):

u have 2 points on that line,lets take 1 of them,say (4,5) since this point lies on the line,it satisfies the equation so just put x=4 and y=5 in your line equation and u will find c....

6 years ago
hartnn (hartnn):

put y as 5 not c as 5 c is to be found out

6 years ago
hartnn (hartnn):

yess,so whats c??

6 years ago
hartnn (hartnn):

yup :)

6 years ago
hartnn (hartnn):

and c is also your final answer,that is y co-ordinate of y-intercept...

6 years ago
hartnn (hartnn):

your welcome anytime :)

6 years ago