II. Elementary Theorems on the Roots of an Equation (Part I) 5. Let f(x) = (x-1) (x+2) a. What is the degree of f(x) b. What are the roots and their multiplicity respectively. III. Sketching Graphs of...

Please solve Q. 5

Extracted text: II. Elementary Theorems on the Roots of an Equation (Part I) 5. Let f(x) = (x-1) (x+2) a. What is the degree of f(x) b. What are the roots and their multiplicity respectively. III. Sketching Graphs of Polynomial Functions 6. Find the x-intercepts and determine whether the graph of the function crosses the x-axis at each x-intercept, and sketch the graph. a. f(x) = (x - 4)°(x + 3) b. f(x) — (3х - 4)'(x - 3)(х+2) | 7. Determine the behavior of the graph as x → o or x → -00. a. y= x'- 3x b. y = x* - 2x? с. у%3-х*+ 3x? + 1 d. y = -x'+ 2x² -8