Exercises: Combine Standard Function Types Using Arithmetic Operations

Work through each section in order. Show your work for all computation problems.

Grade 9·21 problems·~28 min·Common Core Math - HS Functions·standard·hsf-bf-a-1b

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Fluency Practice

Let $f(x) = 2x + 1$ and $g(x) = x^2$ . Which expression equals $(f + g)(x)$ ?

$x^2 + 2x + 1$

$2x^2 + 1$

$(2x + 1)(x^2)$

$2x^2 + 1$ (from substituting $g$ into $f$ )