AaronAndyson
  • AaronAndyson
Find the equation of a line hose y-intercept and slope have the same numerical value and pass through (4,-5)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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AaronAndyson
  • AaronAndyson
*whose
tootzrll
  • tootzrll
first, lets start with a graph: |dw:1447135143646:dw|
tootzrll
  • tootzrll
now that we have a graph, lets simplify the problem. what we have to do is find the point on which certain coordinates intersect, then plot the course. sounds complicated, maybe.

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kropot72
  • kropot72
The general equation for a line is: y = mx + b where m is the slope and b is the y-intercept. In this case we can write: y = mx + m ............(1) Plugging the given values of the coordinates of the point into (1) we get: -5 = 4m + m ..........(2) If you solve equation (2) to find the value of m, that value can be plugged into equation (1) to give the equation of the line.
AaronAndyson
  • AaronAndyson
x+y+1 =0?
kropot72
  • kropot72
@AaronAndyson What is your value for m?
AaronAndyson
  • AaronAndyson
-1
kropot72
  • kropot72
Correct. So plug that value into equation (2).
kropot72
  • kropot72
y = -x - 1 is the required equation.

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