The temperature in Country Y is at least 7 degrees colder than in Country X. Write an Inequality and graph it.

Solution:

Let temperature in Country Y be
y
and temperature in Country X be
.

"Temperature in Country Y is is at least 7 degrees colder than in Country X."

At least tells us that the inequality sign is
>=
and that the difference in temperature is at least 7

x-y>=7

x>=7+y

x-7>=y

y =7
in your own words.

2. What are the basic steps to be followed in graphing a two-variable linear inequality?

3. In the solution graph, why is the line
y =7
?
How can you find if a point is a solution to inequality?

1)x-y>7

x>7+y

x-7=y

y =7

If it has to be at least 7 then 7 is less than all of them or equal to it.

2) Step 1: Always start by isolating the variable y on the left side of the inequality.

Step 2: Change the inequality to equality symbol. ...

Step 3: Graph the boundary line from step 2 in the X Y − XY- XY−plane. ...

Step 4: The last step is to shade one side or region of the boundary line.

3) The solution graph is y=7 because there is no possible x or x=0

you can find  a point in an inequality in the shaded region of the graph. Any of the points in the shaded region work as a solution of the inequality

Hope I helped!!

1. 8

2. 9

3. 20

4. 3

5. 17

6. 2.2

7. 11.25

8. 1

9. 14

10. 2

step-by-step explanation:

thats the first half