What are the x-intercepts of the graph of the function f(x) = x2 + 5x − 36?

The x-intercepts occur where f(x) = 0. Factor x² + 5x − 36 as (x + 9)(x − 4) = 0, so x = −9 or x = 4. Therefore, the x-intercepts are (−9, 0) and (4, 0), which is choice B.

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