Question

Which of the following could be the number of real roots, including any repeated roots, of a linear polynomial with real coefficients? Select all possible answers

0, 1, 3, 5

Answer 1

1

A (nonzero) linear polynomial ax + b (a ≠ 0) has exactly one real root x = −b/a (multiplicity 1), so only 1 is possible. 0, 3, and 5 are impossible for a degree‑1 polynomial.