x squared - 9x - 8 = 0 A. x = ______ (Type an exact answer, using radi

1. x squared - 9x - 8 = 0
A. x = ______ (Type an exact answer, using radicals as needed. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.)
B. The solution is not real number.

2. Sketch the graph of the equation.

y = - 1/10x squared. **Please provide the vertex and ordered pairs so that I can graph the equation correctly graph. Please provide the graph as well.***

3. Use the quadratic formula to solve the equation.

4k squared - 5k - 4 = 0
A. k = ________ (Type an exact answer,using radicals as needed. Use a comma to separate answers as needed.)
B. The solution is no a real number.

4. Solve the equation by completing the square. Simplify your answers. Express any complex numbers using "i" notation.
A. x = ___________(Type exact answers, using radicals as needed. Use a comma to separate answers.)
B. There is no solution.

5. Use the square root property to solve the equation.

x squared - 23 = 0
A. The solution is x = _________(Simplify your answer. Type an exact answer, using radicals as needed. Use a comma to separate answers as needed.)
B. There is no solution.