Card 1 of 21
Evaluate ∣3−8∣+∣−4∣|3-8|+|-4|∣3−8∣+∣−4∣.
A
The range of y=∣x∣y=|x|y=∣x∣ is y≥0\boxed{y\ge 0}y≥0.
B
999
C
For x<0x<0x<0, ∣x∣=|x|=∣x∣= −x\boxed{-x}−x.
D
It reflects in the xxx-axis, so it opens downwards.
Card 1 of 21
1.3.6 The modulus function (A-level only) Flashcards
21 flashcards on OCR (MEI) A Level Maths 1.3.6 The modulus function (A-level only): the key formulae, methods and definitions you need to recall for Component 01, Component 02 and Component 03.