Please look at the picture below to answer.

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?

Given right triangle a w/a hypotenuse length of x+4 and a leg of x, and right triangle b, w/ a hypotense length of 3y and a leg length of y+4 for what values of x and y are the triangles congruent by hl?

2pointswhat is the best next step in the construction of the perpendicular bisector ofab?