2015 H2 Mathematics Paper 1 Question 2

Graphs and Transformations

Answers

(i)

(ii)

−1.732<x<0.414{-1.732 < x < 0.414} or x>1.732{x> 1.732}

Full solutions

(i)

(ii)

From the graph, solution to ∣x+11−x∣<x+2is{\left|\frac{x+1}{1-x}\right| < x + 2 is}
−1.732<x<0.414   or   x>1.732  ■-1.732 < x < 0.414 \; \textrm{ or } \; x > 1.732 \; \blacksquare