SOLUTION: Our teacher's asked us to make the slope intercept form of this and make a graph: x + y = -7 I've tried to answer and this is what Ive done: m = -1 and y= -7 Am I correct? Can

Algebra ->  Trigonometry-basics -> SOLUTION: Our teacher's asked us to make the slope intercept form of this and make a graph: x + y = -7 I've tried to answer and this is what Ive done: m = -1 and y= -7 Am I correct? Can       Log On


   

Question 761915: Our teacher's asked us to make the slope intercept form of this and make a graph: x + y = -7
I've tried to answer and this is what Ive done: m = -1 and y= -7
Am I correct? Can anyone help me? Thanks.
Found 2 solutions by ramkikk66, lenny460:
Answer by ramkikk66(644) About Me  (Show Source):
You can put this solution on YOUR website!
x+y = -7.
Writing it in the slope-intercept form y = mx + c, where m is the slope and c is the y-intercept,
y = -x -7.
So, m = -1, y intercept = -7.
You are right :)
See the graph shown below - your graph should be something like this.
Solved by pluggable solver: DESCRIBE a linear EQUATION: slope, intercepts, etc
Equation 1+x+%2B+1+y+=+-7 describes a sloping line. For any
equation ax+by+c = 0, slope is -a%2Fb+=+-1%2F1.
  • X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. -7/1 = -7.
  • Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is -7/1 = -7.
  • Slope is -1/1 = -1.
  • Equation in slope-intercept form: y=-1*x+-7.
graph%28+500%2C+500%2C+-7-8%2C+-7%2B8%2C+-7-8%2C+-7%2B8%2C+-1%2Ax%2B-7+%29+

Answer by lenny460(1073) About Me  (Show Source):
You can put this solution on YOUR website!
Our teacher's asked us to make the slope intercept form of this and make a graph: x + y = -7
I've tried to answer and this is what Ive done: m = -1 and y= -7
Am I correct? Can anyone help me? Thanks.

x + y = -7
Subtract x from each side of the equation:
x + y - x = -7 - x
Combine like terms:
x - x = 0
-7 - 1x = -1x - 7

Slope intercept form:
y = mx + b
Therefore:
y = -1x - 7


Answer:
Slope = -1 and
y-intercept of the line is -7












Lennox Obuong
Algebra Tutor
Nairobi, Kenya
Email: lennoxobuong@yahoo.com