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Yes. Goblins offers a generous free tier that includes 1 live feedback assignment per week, insights on student mastery and replays, and the ability to upload your own content. The Max plan adds unlimited assignments, superadaptive mode, grade exports, standards growth reports, and SSO/LMS integration, with per-student pricing for schools and districts.

How does Goblins work?

Three simple steps: (1) Share an assignment from thousands of standards-aligned topics using a share code. (2) Students speak and draw their thinking naturally, and Goblins responds with Socratic questioning that sounds just like their teacher. (3) Teachers get real-time formative insights showing what students struggle with and suggestions to inform instruction.

Does Goblins prevent cheating?

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Can I use my own voice with Goblins?

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What math levels does Goblins cover?

Goblins covers math from Grade 5 through AP Calculus, including thousands of standards-aligned topics. Teachers can also upload their own content for custom assignments at any level.

Is Goblins FERPA compliant?

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Does Goblins support English Language Learners?

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What grade level is M.A2HS.35 taught?

This standard is part of the M curriculum in West Virginia College- and Career-Readiness Standards for Mathematics.

Are there practice problems for M.A2HS.35?

Yes, there are 3 practice problems available for M.A2HS.35 with worked examples.

What learning resources are available for M.A2HS.35?

There are 8 Khan Academy resources available for M.A2HS.35, including 4 videos, 3 exercises, 1 articles.

M.A2HS.35: Find inverse functions. Solve an equation of the form f(x) = c for a simple function f that has an inverse and write an expression for the inverse. (e.g., f(x) = 2 x^3 or f(x) = (x+1)/(x-1) for x ≠ 1.)

Find inverse functions. Solve an equation of the form f(x) = c for a simple function f that has an inverse and write an expression for the inverse. (e.g., f(x) = 2 x^3 or f(x) = (x+1)/(x-1) for x ≠ 1.)

Example Problems

What is the inverse of the function?

f(x) = 2e^x

What is the inverse of the function?

f(x) = e^{3x}

What is the inverse of the function?

f(x) = e^{2x}

Khan Academy Resources

Intro to inverse functions Evaluate inverse functions Find inverses of rational functions Finding inverses of linear functions Finding inverse functions: linear Graphing the inverse of a linear function Finding inverses of rational functions Inputs & outputs of inverse functions

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