Linear models
Linear models is a skill on Pengi from Lesson 6: Chapter Summary and Review in Yoshiwara Intermediate Algebra.
Key Concepts
Property Linear models have equations of the form: $$y = \text{(starting value)} + \text{(rate of change)} \cdot x$$.
Examples It costs 2000 dollars to develop a calculator and 20 dollars to manufacture each one. The total cost, $C$, for $n$ calculators is $C = 2000 + 20n$.
The world's oil reserves were 2100 billion barrels and decrease by 28 billion barrels per year. The remaining reserves, $R$, after $t$ years is $R = 2100 28t$.
Common Questions
What is Linear models?
Linear models is a skill on Pengi from Lesson 6: Chapter Summary and Review in Yoshiwara Intermediate Algebra.
What grade level is Linear models for?
Linear models is part of the Grade 7 Math curriculum, covered in Yoshiwara Intermediate Algebra. It is designed for students studying Math at the Grade 7 level.
How can I learn Linear models?
Pengi offers an AI-guided lesson for Linear models that walks you through the key concepts step by step. The lesson is aligned to Yoshiwara Intermediate Algebra so the content matches what you see in class.
How do I practice Linear models?
After learning the concept, use the Practice mode to work through targeted exercises on Linear models. The AI adapts to your level and gives feedback on each answer so you can identify and fix mistakes.
Which textbook covers Linear models?
Linear models is covered in Yoshiwara Intermediate Algebra, specifically in Chapter 1: Linear Models under Lesson 6: Chapter Summary and Review. Pengi's lesson is aligned directly to this textbook so you can follow along with your class.
Is Linear models free to study on Pengi?
Yes, the core Learn and Practice modes for Linear models are available for free on Pengi. No credit card is required to start studying.