topic: sketching the graph

Hi, `i need assistance with these questions. answer each question thoroughly and then sketch the graph. While sketching the graph, please provide an explanation as to how and where you've used your finding or values( extrema, inflection point, x intercept, concavity) on the graph. Please use camscanner to capture your work

Q4. Given: F(x) = x4 - 5x2 + 4 1) Find the domain. 2) Find the intercepts. 3) Find f'(x), and determine the critical numbers. 4) Use the First Derivative Test to determine whether the function is increasing and decreasing 5) Determine the extrema. 6) Find f(x), and determine the inflection points. 7) Use the second derivative test to study the concavity and write the intervals on which the concavity is up and down. 8) Sketch the function