Tell Whether a Linear Model or a Quadratic Model Is $x ^ { 2 }$

question 496

Multiple Choice

Tell whether a linear model or a quadratic model is appropriate for the data. If linear, tell whether the slope should be
positive or negative. If quadratic, decide whether the leading coefficient a of $x ^ { 2 }$ should be positive or negative.
-The amount of sales tax paid as a function of the sales price.

• A) quadratic; positive
• B) linear; negative
• C) quadratic; negative
• D) linear; positive

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Definitions:

Peer Relationships

Social connections between individuals of approximately the same age or maturity level, often providing a source of friendship, learning, and growth.

Phonics Instruction

A method of teaching reading and spelling that stresses symbol-sound relationships, typically used in the beginning stages of reading.

Metalinguistic Awareness

The ability to think about and reflect on the nature and functions of language, understanding that words can be objects of thought.

Whole-Language Approach

An educational method focusing on understanding and producing meaningful language rather than learning phonics and grammar rules in isolation.