1. Use the graphing tool on the right to graph the parabola y= -2x^2.( i need coordinates to graph.)
2. Give the coordinates of the vertex. Sketch the graph of the equation y=X^2-1 ( i need coordinates to graph.)
3. Graph the quadratic equation by plotting points. y=(x-5)^2 ( i need coordinates to graph)
4. Sketch the graph of the parabola. Find the coordinates of the vertex. y= -x^2+4x-7 ( i need coordinates to graph)
5. A laboratory designed a radio telescope with a diameter of280 feet and a maximum depth of 44 feet.The graph depicts a cross section of this telescope. Find the equation of this parabola. The equation is y=......................................(Simplify your answer. Type your answer in the form y = ax^2 type as a fraction Type a as a fraction.)