The quadratic equation x2-4x+K has real and distinct roots if
k>4
k<4

Hi guys
i actually have a doubt because is it possible to solve it as
(4)2-4K>0
16-4K>0
-4K>-16
K>4?

or only
4^2-4k>0
16>4k
4>k

what?

step-by-step explanation:

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb

i believe that the slope of the line is -5

step-by-step explanation: