SSATSuite
Know Your Keywords — Math, Advanced

Point 7 — Polynomial inequalities

What do we see?

Polynomial inequalities.

What do we understand?

Graph the polynomial — or sketch its sign pattern between consecutive roots.

Question 1 of 2

If the graph of the function f(x) = 6(x − a)(x − b)(x − c) passes through point (r, s), where s = 5, which of the following is true for r? (y is positive for a < x < b)

I. r < a

II. b < r < c

III. r > c