Raymond B. answered • 09/05/22
Math, microeconomics or criminal justice
{(3,3), (6,6),(7,7)} is a funciton
domain is all the x coorindates: 3,6 and 7
range is all the y coordinates: 3,6, and 7
range and domain are the same
plot the points if you can't draw a vertical line through them and cut through 2 points, then it's a function. That's the vertical line test.
for every x value there can only be one y value, otherwise it's not a function.
(3,3),(6,6),(7,7) also look like 3 points on the line y=x which is also a function.
It's also a "one to one function" as it also passes the horizontal line test. It's not possible to draw a horizontal line through the points and intersect more than one point.
