Linear and quadratic inequalities

Linear and quadratic inequalities Quiz

Spec 1.9 · Edexcel International A Level Maths: Quiz

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5 questions, one answer each

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1. Solve $2-3x\le11$ .
- A. $x\le-3$
- B. $x\ge-3$
- C. $x\le3$
- D. $x\ge3$
2. Solve $x^2-5x+4\ge0$ .
- A. $1\le x\le4$
- B. $x\ge4$
- C. $x<1$ or $x>4$
- D. $x\le1$ or $x\ge4$
3. Solve $x^2<9$ .
- A. $x<3$
- B. $x<-3$ or $x>3$
- C. $-3<x<3$
- D. $x>-3$
4. Solve $\frac4x>1$ for $x\neq0$ .
- A. $0<x<4$
- B. $x<4$
- C. $x>4$
- D. $x<0$ or $x>4$
5. For which values of $x$ does the curve $y=x^2-3x$ lie below the line $y=2x-6$ ?
- A. $x<2$ or $x>3$
- B. $x>3$
- C. $-3<x<-2$
- D. $2<x<3$