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Make a table of solutions and graph the equation. x + y = 6

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asked May 14, 2014 in ALGEBRA 1 by marleney Novice

2 Answers

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The equation is x + y = 6.

Write the equation in slope-intercept form y = mx + b, where m is slope and b is y - intercept.

y = - x + 6.

Make the table of values to find the solutions that satisfy the equation.

Choose values for x and find the corresponding values for y.

x

y = - x + 6

(x, y )

 - 2

y = - (- 2) + 6 = 2 + 6 = 8

 (- 2, 8)  

-1

y = - (- 1) + 6 = 1 + 6 = 7

(- 1, 7)

0

y = - (0) + 6 = 0 + 6 = 6

(0, 6)

1

y = - (1) + 6 = - 1 + 6 = 5

(1, 5)

2

y = - (2) + 6 = - 2 + 6 = 4

(2, 4)

From the table the solutions are y = 8, 7, 6, 5, and 4, when x = - 2, - 1, 0, 1, and 2.

The points are (- 2, 8), (- 1, 7), (0, 6), (1, 5), and (2, 4).

The equation is y = - x + 6.

Graph :

  • Draw the coordinate plane.
  • Plot the above points.
  • Connect the ploted points.

Then, the formed line indcating given equation.

answered May 14, 2014 by lilly Expert
0 votes

Sketching the Graph of an Equation by Point Plotting :

1. If possible, rewrite the equation so that one of the variables is isolated on one side of the equation.

The equation is x + y = 6 → y = - x + 6.

2. Make a table of values showing several solution points.

Choose the different values of x, and substitute these values in the original equation to obtain random y - values.

x

y = - x + 6

(x, y)

- 1

y = - (- 1) + 6 = 7

(- 1, 7)

0

y = - (0) + 6 = 6

(0, 6)

1

y = - (1) + 6 = 5

(1, 5)

2 y = - (2) + 6 = 4 (2, 4)

3

y = - (3) + 6 = 3

(3, 3)

4 y = - (4) + 6 = 2 (4, 2)
5 y = - (5) + 6 = 1 (5, 1)

3. Plot these points on a rectangular coordinate system.

4. Connect the points with a smooth line.

graph the equation y=-x+6

 

 

answered May 14, 2014 by steve Scholar

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