Find four solutions of the given function. write the solutions as ordered pairs.
4x - y = 4

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

What is the difference between the equations of a vertical and a horizontal line?

Consider circle c with angle acb measuring 3/4 radians.if minor arc ab measures 9 inches, what is the length of the radius of circle c? if necessary, round your answer to the nearest inch.