If x and y are integers and x < y, how do the opposite of y and the opposite x compare?

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality

Which statements are true about additional information for proving that the triangles are congruent check all that apply