- Which of the following is the graph of 3x + 7y = 21

A.

B.

C.

D.

- Write 3 points that are on the graph of y = x
^{2}.

3. Find the distance between (3, 5) and (-3, 8).

4. Findan equation of the circle with diameter, 6, and center (0, 1).

5. Find an equation of the circle whose endpoints of the diameter are

(3, 5) and (-1, -9).

6. Find the center and radius of the circle given by the equation,

(x – 4)^{2} + (y + 1)^{2} = 100

7. Which of the following graphs is a function.

B.

C.

D.

8. Given the function f( x ) = x^{3} – x + 20, find

each of the following.

(a) f( 5 )

(b) f( -2 )

(c) f( m )

(d) f( 2y )

9. Please choose which of A through D is the domain and range of the following

function:

- Domain [-2, -.5]; Range [-1, 0]
- Domain ; Range [0, 3]
- Domain [-4, 2]; Range [-1, 3]
- Domain [-1, 3]; Range [-4, 2]

10. The elevation E, in meters, above sea level at which the boiling point of

water is t degrees Celsius is given by the function

E(t) = 1000(100 – t) + 580(100 – t)^{2}.

At what elevation is the boiling point 99.5 degrees?

11. Find the slope of the line that joins the points (-3, -4) and (5, 1).

12. Find the slope and y-intercept of the line given by the equation,

.

13. Write a slope-intercept equation for a line with m = -4.2 and y-intercept

of (0, 6).

14. Write a slope-intercept equation for a line passing through (-1, 5) and

(2, -4).

15. Determine whether the lines given by the equations 5x – y = -3 and

y = 5x +.2 are parallel, perpendicular, or neither.

16. Determine whether the lines given by the equations y = 2x and

y = -.5x are parallel, perpendicular, or neither.

17. Solve 4(3x + 2) – 7 = 3(x – 2) and then, check your answer under the

word, CHECK, below.

** CHECK:**

For #18 and #19, solve the inequality.

#18 8x – 7 < 6x + 3

19. 5 < x + 2 < 15

20. Tish Movers charges $100 plus $30 per hour to move a household across

town. Mundo Movers charges $55 per hour. For what lengths of time

does it cost less to hire Mundo Movers? Please write an appropriate