The function f is given by f(x)= (x-2) (x+4) . Without using graphing technology, answer the following questions. (graph included) 1) What are the x-intercepts of the graph representing f?

2) What are the x- and y-coordinates of the vertex of the graph?

please help!!

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y < 4x − 8 y is greater than or equal to negative 5 over 2 times x plus 5 part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points) part b: is the point (5, −8) included in the solution area for the system? justify your answer mathematically. (4 points)