How do I solve y=-x-4

I need to be able to plot these points on a graph but i don't know how to solve the problem.
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1 Answer

How do I solve y=-x-4

I need to be able to plot these points on a graph but i don't know how to solve the problem.
 
  1. make an x & y axis. ( like a cross one line goes vertical an the other horizontal)
  2. put equal dimention for x & y line
  3. From center line moving to the left is negative
  4. line moving down is negative
  5. Just assign values for x & y then locate it at the x & y axis. smiley
 
                                                                                                                                                         SOLVE Y                                                                                       
POINTS X Y
1 0 SOLVE Y
2 SOLVE X 0
3 1 SOLVE Y
4 SOLVE X 1
5 2 SOLVE Y
6 SOLVE X 2
7 -1
8 SOLVE X -1
9 -2 SOLVE Y
10 SOLVE X -2
11 3 SOLVE Y

y=-x-4

sample: in point 1 => if  x = 0

y = - (0) - 4

y = - 4

in point 2 => if y = 0

0 = - x - 4

x = - 4

in point 7 => if x=-1

y = -x -4

y =-(-1) -4

y = +1 - 4

y = - 3

at point 8 => if y = -1

-1 = -x -4

x = -4 + 1

x = - 3

- 3

POINTS X Y
1 0 - 4
2 - 4 0
3 1 - 5
4 - 5 1
5 2 - 6
6 - 6 2
7 -1
8 - 3 -1
9 -2 - 2
10 - 2 -2
11 3 - 7

if you have done the 1 to 4 then you can plot the points from 1 to 11 and there is your graph.

 

by Level 3 User (2.7k points)
edited

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