EDGE Math 8

Consider the function

f (x) = x^{2} + 5 x - 1.

Consider the function

f (x) = x^{2} + 5 x - 1.

Evaluate each function notation. Choose your answer.

f (1)

None of the choices

Answer: 5

f (0)

–1

None of the choices

Answer: –1

f (- x)

- x^{2} - 5 x + 1

- x^{2} - 5 x - 1

x^{2} - 5 x - 1

None of the choices

Answer: $x^{2} - 5 x - 1$

4.	$f (x + 1)$

x^{2} + 7 x + 5

x^{2} + 6 x + 5

x^{2} + 6 x

None of the choices

Answer: $x^{2} + 7 x + 5$

5.	$f (x - 2)$

x^{2} + 3 x - 7

x^{2} + 6 x - 3

x^{2} + x - 7

None of the choices

Answer: $x^{2} + x - 7$

6.	$f (x^{2} - 1)$

x^{4} + 5 x^{2} - 2

x^{4} + 3 x^{2} - 5

2 x^{2} + 5 x - 2

None of the choices

Answer: $x^{4} + 3 x^{2} - 5$

/ 6