Answer:
Ok, so when you graph, you want to make sure your point are right. 4, would be im guessing +4, so you would find +4, on your graph across the X axis. Keep that in mind. Then find +3, across the Y axis on your graph. Join the points, and you have your answer.
Step-by-step explanation:
I hope this helps you
10.8/12 x 100 = 90%
So he saves 10%
Add the expensive ones that equals 10.80 and then add all them together which gives you £12 you put 10.80 over 12 and multiply by 100 to find the percentage you have and then minus that from 100 which will give you your answer of 10%
.50x -5=0
Add 5 to both sides
.50x=5
Divide both sides by.5
X =10. You must sell 10 to break even
The slope is .50
The y intercept is -5
