alleryA number line is first used in school to teach what?
AAdding and subtracting integers
BSolving quadratic equations
CProving triangle theorems
DFinding slopes of curves
Answer & Solution
Correct answer: A. Adding and subtracting integers
1. The number line shows numbers in order along a line.
2. It is initially used to teach addition and subtraction of integers.
3. Quadratics, proofs and derivatives are taught later.
_Source: Wikipedia, Number line, Lead section_
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