The lines and intersect at point . What is the area of the triangle formed by and the -intercepts of the two lines?
Answer and explanation
Correct answer: B.
- Step 1: Set : , , so .
- Step 2: The -intercepts are and , so the base is .
- Step 3: The height is , so the area is .
Answer
.
Why not the others: omits the factor ; and use a wrong base ( or ).
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