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Printjmc
algebra senior
Problem
How many square units are in the area of the triangle whose vertices are the and intercepts of the curve ?
Solution
First, we need to find where this curve intersects the and axes. If , then , which has solutions of and . If , then . So, the curve has two -intercepts and one -intercept. The length of the base along the -axis is . The height from this base is equal to the -intercept, 18. The area of the triangle is .
Final answer
45