GCSE Secondary Maths Age 13-17 - Algebra: Expressions, Formulas and Functions - Explained

The video tutorial covers solving a math problem where g is made the subject of a formula. It involves removing a square root and isolating g by manipulating both sides of the equation. The tutorial also explains the marks distribution for the question and provides general exam tips, such as using calculators correctly, remembering formulas, and checking answers. The video emphasizes the importance of applying consistent operations to both sides of an equation.

What is the first step to make 'g' the subject of the formula T = √((g + 6)/2)?

• Add 6 to both sides

• Square both sides

• Multiply both sides by 2

• Subtract 6 from both sides

After squaring both sides of the equation, what should be done next to isolate 'g'?

• Divide both sides by 2

• Subtract 6 from both sides

• Multiply both sides by 2

• Add 6 to both sides

How many marks are awarded for correctly removing the square root sign in the equation?

• 1 mark

• 2 marks

• 3 marks

• 4 marks

What should you do if your calculator is not set to degrees before an exam?

• Use a different calculator

• Try to solve the problem without a calculator

• Ask your math teacher to set it to degrees

• Ignore it and proceed

What is a recommended strategy if you finish your exam early?

• Help other students

• Start a new exam

• Leave the exam room

• Check your calculations