Answer:
the last diagram...........
The first one
Step-by-step explanation:
Try the vertical line test. If it goes through the line completely, it's not a function. The line perfectly goes through b and c, so a is the only viable answer. Let me know if you want an example.
1/5 is left.
Portion remaining after the bar was eaten by his brother = 1 - 1/5 = 4/5.
Portion remaining after John ate 3/4 of this = 4/5 - 3/4* 4/5 = 4/5 - 3/5
= 1/5.
Answer: y=mx+b find any two points on the line
