Question

Choose the graph that represents the following system of inequalities:

y ≤ −3x + 1
y ≤ x + 3

In each graph, the area for f(x) is shaded and labeled A, the area for g(x) is shaded and labeled B, and the area where they have shading in common is labeled AB.

Answer 1

c

Explanation:

took test

Answer 2

Correct graph is C

Explanation:

Given two inequalities are:

1.
`y\leq -3x+1`

2.
`y\leq x+3`

Step1 : Remove the inequalities

1.
`y =-3x+1`

2.
`y = x+3`

Step2 : Finding intersection points of equations

By solving linear equation

`y =-3x+1 =x+3`

`-3x+1 =x+3`

`x = -0.5`

Replacing value of x in any equations

we get,

`y = x+3`

`y =-0.5+3`

`y = 2.5`

Therefore, Point of intersection is (-0.5,2.5)

Step3: Test of origin (0,0)

Here, If inequalities holds true for origin then, shades the graph towards the origin.

For equation 1.

`y\leq -3x+1`

`0\leq -3(0)+1`

`0\leq +1`

True, Shade graph towards origin.

For equation 2.

`y\leq x+3`

`0\leq 0+3`

`0\leq 3`

True, Shade graph towards origin.

Thus, Correct graph is C