After getting 5 new rocks, george gave half of his rock collection to susan. if george gave susan 36 rocks, which equation could be used to determine how many rocks george started with?

Let

x--------> amount of starting rocks George had

we know that

------> equation that could be used to determine how many rocks George started with

Solve for x

Multiply by both sides

Subtract both sides

therefore

the answer Part a) is

The equation that could be used to determine how many rocks George started with is

the answer Part b) is

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

this answer is !