Solve the system by graphing. y<-12x+3y<3x-4

Short Answer

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The solution of the system y<-12x+3y<3x-4i

Step by step solution

01

Step 1. Given

The system of inequality equations: y<-12x+3y<3x-4

To solve the system by graphing.

02

Step 2. Graph the first inequality

Graph the line y=-12x+3

It is a dashed line because the inequality sign is <.

Shade in the side of that boundary line where the inequality is true.

Use (0,0)as a test point.

It is a solution so we shade the region which contains the test point.

03

Step 3. Graph the second inequality.

Graph the boundary line y<3x-4

It is a dashed line because the inequality sign is <

Use (0,0)as a test point.

It is a solution so we shade the region which contins the test point.

04

Step 4. Find the region of intersection

The solution is all the points in the area shaded twice- which appears as the darkest shaded region.

05

Step 5. Check by using test point

Choose (2,1)as a test point.

Substitute (2,1)in the inequality

y<-12x+3

1<-12(2)+3

1<-1+3

1<2is true

Substitute (2,1)in the inequality y<3x-4

1<3(2)-4

1<6-4

1<2is true.

The region containing (2,1)is the solution to the system.

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