SAT Math Multiple Choice Practice Question 322: Answer and Explanation
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Question: 322
14.
In the figure above, the slope of line l is and the area of the triangle is 48 square units. What is the value of x + y?
A. 13
B. 14
C. 19
D. 22
E. 96
Correct Answer: D
Explanation:
D Two points on line l are (0, 0) and (10, y). Find the slope of the line:
Since , the height of the triangle is 6. Find the area:
Now find .