## Algebra 1: Common Core (15th Edition)

$y=x^2-1$
A function rule that represents the relationship between x and y is: $y=x^2-1$ It works for all the terms: $(-4,15): 15=(-4)^2-1$ $(-3,8): 8=(-3)^2-1$ $(-2,3): 3=(-2)^2-1$ $(-1,0): 0=(-1)^2-1$ ........