beginning of content:
SAT Subject Test
A line has parametric equations 
and 
, where 
is the parameter. The slope of the line is
Select an Answer
Correct Answer:
No
Correct Answer:
Yes
Correct Answer:
No
Correct Answer:
No
Correct Answer:
No
View Correct Answer
The correct answer is B.
One way to determine the slope of the line is to compute two points on the line and then use the slope formula. For example, letting 
gives the point 
on the line, and letting 
gives the point 
on the line. Therefore, the slope of the line is equal to 
.
Alternatively, one can express 
in terms of 
. Since 
and 
, it follows that 
. Therefore, the slope of the line is 
.
Question Difficulty:
medium