77.9k views
2 votes
Can someone help me I don't understand, it's 5 marks

Can someone help me I don't understand, it's 5 marks-example-1

1 Answer

5 votes

Explanation:

For now ignore the inequalities, you can replace them by =

So,

You have y=1 first right?

This one is pretty simple it's where y is 1. x can change but y needs to stay 1. Find 1 on the line y and draw your line there. (orange line)

Next, y = 2x+2

You can do a littleeee table to find the coordinates of this line.

You give x any random value and replace it in the equation y and get y.


x \: \:0 \: \: 1 \\ y \: \:2 \: \:4

For example here, we used 0 and 2 as x.

Y = 0(2)+2 = 0+2 = 2

Y = 2(1)+2 = 2+2 = 4

So we got two coordinates. (0,2) and (1,4)

Plot your points, and then use your ruler to draw the line.

(red line)

Next, x+y=3

This one you have to go to the x and y axis both and take 3 as your points and draw your line. (you go the the x axis and take 3 there, go to the y axis and take 3 there too)

(blue line)

Now, the inequalities. If you have > then it means the line is broken

If there is a line below the > (>=) then it's a solid line. I hope you understand why I broke the red and yellow lines now. But you can ignore this if it confuses you.

Just know if you have a:

• Horizontal or diagonal line, > is for above the line and < is for below the line

• Vertical, > is for right, < is for left.

It indicates the direction where the area should be

That's how you find R

Can someone help me I don't understand, it's 5 marks-example-1
User Ewald Bos
by
7.7k points

No related questions found