Good morning Can you please help me

1. Find the vertex and the axis of symmetry and graph the function

f(x)=x^2-5x

Vertex=

Axis of symmetry=

Graph=

2. Solve each system graphically. Before to check your solution. if a system has an infinite number of solutions, use set builder notation to write the solution set. if a system has no solution, state this

x+y=8

x-y=6