If f(n) = n 2 - 2n, then f(2) = 0. true or false ?

It is true because it gives you zero. You plug in 2 for n and then you simplify and get 2(2)-2(2) and that would get you 4-4 which is 0. Hope this helps.

This is true because it does give you zero 0

Abit confused about what you mean, but i think you might be referring to slope intercept form: y = mx + bin that case b, or the y intercept is already given.(0,-1)find the slope by using the formulay2 - y1/x2 - x1the final slope will be 4/2, equivalent to 2.now your equation should look like thisy = 4/2x -1sorry if this didn’t you out!