Can someone help me with the following question in the picture please

What is the y intercept of f(x)=(1/2)^x?

Fill in the blank 1. a rhombus is a rectangle a) always b) sometimes c) never 2. a square is a quadrilateral a) always b) sometimes c) never 3. a trapezoid is a kite a) always b) sometimes c) never 4. a quadrilateral is a kite a) always b) sometimes c) never 5. a square is a rhombus a) always b) sometimes c) never 6. a parallelogram is a rectangle a) always b) sometimes c) never

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?