Which is true about the solution to the system of inequalities shown?

y < One-thirdx – 1

y < One-thirdx – 3

On a coordinate plane, 2 solid straight lines are shown. The first line has a positive slope and goes through (0, negative 1) and (2, 0). Everything below the line is shaded. The second line has a positive slope and goes through (0, negative 3) and (3, negative 2). Everything below the line is shaded.
All values that satisfy y < One-thirdx – 1 are solutions.
All values that satisfy y < One-thirdx – 3 are solutions.
All values that satisfy either y < One-thirdx – 1 or y < One-thirdx – 3 are solutions.
There are no solutions.

Respuesta :

Answer:

B. All values that satisfy y < 1/3x – 3 are solutions.

Answer:

Option B.

Step-by-step explanation:

The given inequalities are

[tex]y<\frac{1}{3}x-1[/tex]          .... (1)

[tex]y<\frac{1}{3}x-3[/tex]         .... (2)

The related equations of both inequalities are

[tex]y=\frac{1}{3}x-1[/tex]

[tex]y=\frac{1}{3}x-3[/tex]

Table of values:

For inequality (1).

x       y

0      -1

3      0

For inequality (2).

x       y

0      -3

9      0

Plot these points on a coordinate plane and draw both related lines.

Check the inequalities by (0,0).

[tex](0)<\frac{1}{3}(0)-1\Rightarrow 0<-1[/tex]   False

[tex](0)<\frac{1}{3}(0)-3\Rightarrow 0<-3[/tex]    False

It means (0,0) is not included in shaded area of any inequality.

From the given graph it is clear that all values that satisfy [tex]y<\frac{1}{3}x-3[/tex]  are solutions.

Therefore, the correct option is B.

Ver imagen erinna
Q&A Education