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Chapter 4: Q. 87 (page 452)

In the following exercises, graph by plotting points.

3x+y=7

Short Answer

Expert verified

The graph of the equation is

Step by step solution

01

Step 1. Given Information 

In the given exercises we have to graph by plotting points.

3x+y=7

02

Step 2. Find three points that are solutions to the equation.First, solve the equation for y.

3x+y=7

Subtract 3xon both side

3x+y-3x=7-3xy=7-3x

03

Step 3. Now the equation is y=7-3xFinding the point by putting the values.

x=0x=1x=2y=7-3xy=7-3xy=7-3xy=7-3脳0y=7-3脳1y=7-3脳2y=7-0y=7-3y=7-6y=7y=4y=1

Now the points are(0,7),(1,4),(2,1)

04

Step 4. Plot all points in a rectangular coordinate system.Plot the points (0,7), (1,4), (2,1)

05

Step 5. Draw the lines through the three points. 

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