Answers>Maths>GCSE>Article

Given that y is directly proportional to square root of x and that y = 20 when x = 49 find an expression to represent x and y.

y = k √x20 = k √49 20/7 = ktherefore y = 20/7 √x

AP
Answered by Ann P. • Maths tutor

6382 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Expand 5yx^2 (3x^3 - 5xy + wy^2)

Answered by Ishaaq N.

Solve x^2 + 10x - 3 = 0

Answered by Isabelle H.

How do you solve a quadratic equarion

Answered by Henry B.

How can I prepare for my Maths GCSE exams?

Answered by Tutor21444 D.

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

Company Information

CareersBlogSubject answersBecome a tutorSchoolsSafeguarding policyFAQsUsing the Online Lesson SpaceTestimonials & pressSitemapTerms & ConditionsPrivacy PolicyGender Pay Gap Reporting

Popular Requests

Maths tutorChemistry tutorPhysics tutorBiology tutorEnglish tutorGCSE tutorsA level tutorsIB tutorsPhysics & Maths tutorsChemistry & Maths tutorsGCSE Maths tutors
CEOP logo
CLICK CEOP

Internet Safety

Sagepay logo

Payment Security

Cyber Essentials logo

Cyber

Essentials

MyTutor is part of the IXL family of brands:

IXL

Comprehensive K-12 personalized learning

Rosetta Stone

Immersive learning for 25 languages

Wyzant

Trusted tutors for 300 subjects

Education.com

35,000 worksheets, games, and lesson plans

Vocabulary.com

Adaptive learning for English vocabulary

Emmersion

Fast and accurate language certification

Thesaurus.com

Essential reference for synonyms and antonyms

Dictionary.com

Comprehensive resource for word definitions and usage

SpanishDictionary.com

Spanish-English dictionary, translator, and learning resources

FrenchDictionary.com

French-English dictionary, translator, and learning

Ingles.com

Diccionario ingles-espanol, traductor y sitio de apremdizaje

ABCya

Fun educational games for kids

© 2026 by IXL Learning