What is the value of X? What is the measure of angle ABC?

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4

The coordinates r(1, -3), s(3, -1) t(5, -7) form what type of polygon? a right triangle an acute triangle an equilateral triangle an obtuse triangle

The function f(x)= x5+ ( x + 3)2 is used to create a table. if x = -1 then what is f(x)?