An intercept triangle and its parallel
8 written marks
The line l passes through \(A(-2,9)\) and \(B(4,-3)\).
Part a · 2 marks
Find an equation of l.
Part b · 3 marks
Find both axis intercepts and the area of the triangle formed by l and the axes.
Part c · 3 marks
A parallel line has positive axis intercepts and encloses four times this area with the axes. Find its equation.
Complete-answer checking, worked solutions and indicative written criteria.
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