Question

Identify a function rule for the following ordered pairs (0, -1), (2, 3), (3, 8), (4, 15)

A) y=x^2

B) y=x-1

C) y=x²-1

D) y=2x-1

Answer 1

C

Explanation:

Looking at the first point we know that it can't be A

Then we can easily see that the rate of change is not level (which means it isn't linear)

this leaves option C

Another way to solve this is just by plugging in points

for example for C

(4,15)

15=4^2-1

15=15