Given: b = {(4, 2), (4, -2), (16, 4), . . } write a rule for b. y = x^2 y^2 = x y = 2x

If you square the y coordinate, you get the x coordinate (eg: 2^2 = 4). So the rule is y^2 = x

Note: This is not a function since it fails the vertical line test

It is 94.7% that uses the metric system

Your maths is very weak try yourself this would improve your skills don't depend on others