how many roots of f(x) are rational numbers? 0 1 2 3
how many roots of f(x) are rational numbers? 0 1 2 3
Answer
Explanation:
Step1: Identify root - x - intercepts
The roots of a function (y = f(x)) are the (x) - values where (y=0), i.e., the (x) - intercepts of the graph. From the graph, the (x) - intercepts (where the graph crosses the (x) - axis) are at (x = 2), (x=3) and (x = 4).
Step2: Determine rationality
A rational number is a number that can be written in the form (\frac{p}{q}) where (p,q\in\mathbb{Z}) and (q\neq0). The numbers (2=\frac{2}{1}), (3=\frac{3}{1}) and (4=\frac{4}{1}) are all rational numbers.
Answer:
D. 3