Functions and Graphs

Practice Questions

SAT Subject Test in Math II › Functions and Graphs

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1

Give the -coordinate of the vertex of the parabola of the function

$f(x) = 2x^{2} + 6x + 5$ .

2

What is the center and radius of the circle indicated by the equation?

3

What is the center and radius of the circle indicated by the equation?

4

Find the slope of the following equation:

5

Give the -intercept(s) of the parabola of the equation

$f(x) = 3x^{2}-9x -54$

6

What is the vertex of ? Is it a max or min?

7

What is the vertex of ? Is it a max or min?

8

Give the -intercept(s) of the parabola of the equation

$f(x) = 3x^{2}-9x -54$

9

Give the -coordinate of the vertex of the parabola of the function

$f(x) = 2x^{2} + 6x + 5$ .

10

Define functions and as follows:

$f(x) = \left{\begin{matrix} 2x+ 1 &x< 0 \ 3x & x \ge 0 \end{matrix}\right.$

$g(x) = \left{\begin{matrix} x+ 9 &x< 0 \ x- 2 & x \ge 0 \end{matrix}\right.$

Evaluate $(f \circ g) \left (-1.7\right )$ .

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