Solution of 4x-y=4, 3x+2y=14 when solving by elimination method is

What value of x will make the triangles similar by the sss similarity theorem?

What is the value of f(x) = 2.2 for f(-2)?

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.