Unit 1 Functions Pre-Assessment AFDA

Which number is NOT an element in the domain of this relation?

{(–2, 3), (0, 4), (1, 1), (6, 0)}

• 4

• 1

• 0

• -2

What is the apparent range of the relation shown on the grid?

• $\left\{-2,1,3\right\}$

• $\left\{-2,1,2,4\right\}$

• $\left\{1,2,3,4\right\}$

• $\left\{-2,2,3,4\right\}$

The graph of the function is shown above.

What do the domain and the range appear to be?

• $Domain:\ \left[-2,1\right]\ \ Range\ \left(-\infty,\infty\right)$
  

• $Domain:\ \left(-\infty,\infty\right)\ \ \ Range:\ \left[-2,1\right]$

• $Domain:\ \left(-\infty,\infty\right)\ \ \ Range:\ \left[-6\ \frac{3}{4},\ \infty\right)$

• $Domain:\ \left[-6\ \frac{3}{4},\ \infty\right)\ \ \ \ Range:\ \left(-\infty,\ \infty\right)$

What is the range of

 $f\left(x\right)=x^2+2$  , when the domain is all real numbers?

• All real numbers

• All real numbers greater than 0

• All real numbers greater than or equal to 2

• All real numbers greater than 2

Which of the following graphs appears to be a function?

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Which of the following does not represent a function of x?

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Identify each relation that represents a function.

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• { (-4, 2), (-1, 5), (2, 8), (2, 7) }

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