Ihave a couple of questions but this is just 1.
what is the domain function ((1,1), (0,0), (2,-1))

Find the domain of the following expression: 1/(√x)-2

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. what is the resulting expression? (4x2 + 3)(x2 – 5) (4x2 – 3)(x2 – 5) (4x2 – 5)(x2 + 3) (4x2 + 5)(x2 – 3)