SOLUTION: I have a question and i dont have a clue how to do it so would love some help if possible. Find the equation of this line with y-intercept=-1 and passing through (-1;-2) Woul

Algebra ->  Linear-equations -> SOLUTION: I have a question and i dont have a clue how to do it so would love some help if possible. Find the equation of this line with y-intercept=-1 and passing through (-1;-2) Woul      Log On


   

Question 282430: I have a question and i dont have a clue how to do it so would love some help if possible.
Find the equation of this line with y-intercept=-1 and passing through (-1;-2)
Would Love Helppppp
Found 3 solutions by dabanfield, richwmiller, solver91311:
Answer by dabanfield(803) About Me  (Show Source):
You can put this solution on YOUR website!
I have a question and i dont have a clue how to do it so would love some help if possible.
Find the equation of this line with y-intercept=-1 and passing through (-1;-2)
Would Love Helppppp
Since the line has y intercept -1, that means that when x=0, y=-1.
Now you have two points on the line, (0,-1) and (-1,-2) so you can calculate the slope m as (-2-(-1))/(-1-0) = -1/-1 = 1.
The line in slope-intercept form then is:
y = m*x + b where m is the slope and b is the y-intercept.
So we have:
y = 1*x + (-1)
y = x - 1

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
see this problem and 3 solutions
http://www.algebra.com/algebra/homework/Linear-equations/Linear-equations.faq.question.282417.html

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


See the answer to question 282417. The process to solve this one is the same, just different numbers.

http://www.algebra.com/algebra/homework/Linear-equations/Linear-equations.faq.question.282417.html

John