Multiple Choice
Identify the
choice that best completes the statement or answers the question.
|
|
|
1.
|
Graph the equation  .
|
|
|
Solve the equation.
|
|
|
2.
|
|
|
|
Find an equation for the line:
|
|
|
3.
|
through (–8, –4) and perpendicular to y =  x +
1.
|
|
|
Solve the equation or formula for the indicated variable.
|
|
|
4.
|
The formula for the time a traffic light remains yellow is  , where
t is the time in seconds and s is the speed limit in miles per hour. | a. | Solve the equation for
s. | | b. | What is the speed limit at a traffic light that remains yellow for 6 seconds? | | |
a. |  ; s = 47 | c. |  ; s = 48
mi/h | b. |  ; s = 40 mi/h | d. |  ; s = 40
mi/h |
|
|
|
Solve the inequality. Graph the solution set.
|
|
|
5.
|
4(3b – 3) < –20 + 12b
a. | all real numbers
 | c. | no solutions
 | b. | b < 
 | d. | b > 
 |
|
|
|
6.
|
Graph the equation –4x + 3y = –12.
|