44.6k views
3 votes
Graph the system of inequalities:
-x + 2y - 4 <0
3x + 4y + 420

Graph the system of inequalities: -x + 2y - 4 <0 3x + 4y + 420-example-1
User YoYoMyo
by
3.5k points

2 Answers

2 votes

Explanation:

draw the graph then use the graph to answer the following questions

User Lely
by
3.2k points
8 votes

The system of inequalities is:

-x + 2y - 4 < 0

3x + 4y <= -420

The second inequality seems to be incomplete. I'll assume it should be an inequality sign (either "<", "<=", ">", or ">="). Assuming it's <=, let's graph the system of inequalities:

The system of inequalities is:

-x + 2y - 4 < 0

3x + 4y <= -420

To graph these inequalities, we'll start by graphing the boundary lines for each inequality.

For the first inequality (-x + 2y - 4 < 0), let's find its boundary line:

-x + 2y - 4 = 0

2y = x + 4

y = (1/2)x + 2

Now, for the second inequality (3x + 4y <= -420), let's find its boundary line:

3x + 4y = -420

4y = -3x - 420

y = (-3/4)x - 105

Now, let's plot these lines on the graph:

The line for -x + 2y - 4 = 0 (or y = (1/2)x + 2):

Choose two x-values and find the corresponding y-values.

Plot the points and draw the line.

The line for 3x + 4y = -420 (or y = (-3/4)x - 105):

Choose two x-values and find the corresponding y-values.

Plot the points and draw the line.

Graph the system of inequalities: -x + 2y - 4 <0 3x + 4y + 420-example-1
User Chin
by
3.4k points