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Chapter 4: Q 21. (page 429)

In the following exercises, complete the table to find solutions to each linear equation.

y=2x-4

xy(x,y)
0

2

-1

Short Answer

Expert verified

When,

x=0,y=-4,(x,y)=(0,-4)x=2,y=0,(x,y)=(2,0)x=-1,y=-6,(x,y)=(-1,-6)

Step by step solution

01

Given Information .

The given equation isy=2x-4.

02

Calculation.

The equation is : y=2x-4.

We will put the values ofxin the equation to findyand(x,y).

When, x=0,

y=2(0)-4

Therefore, y=-4and(x,y)=(0,-4)

When, x=2,

y=2(2)-4

Therefore, y=0and(x,y)=(2,0).

When, x=-1,

y=2(-1)-4

Therefore, y=-6and(x,y)=(-1,-6).

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