Higher

Change the subject of a formula with squares and square roots

Higher

Change the subject of a formula with squares and square roots

Lesson details

Key learning points

  1. In this lesson, we will change the subject of a formula where the formula involves squares and square roots and the term only appears once.

Licence

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3 Questions

Q1.
Which of the following steps would you take first to make t the subject of the formulae x = 6t + 3
Add three to both sides
Divide boths sides by 6
Correct answer: Subtract 3 from both sides
Subtract x from boths sides
Q2.
Correct answer: He has not multiplied the 7 by 3 to give 21 on the right hand side
He has not subtracted 3g from boths sides
He has written -3g in his final answer
Q3.
A
Correct answer: B
C

3 Questions

Q1.
A
B
Correct answer: C
Q2.
A
B
Correct answer: C
D
Q3.
A
Correct answer: B
C

Lesson appears in

UnitMaths / Substitution and Rearranging formulae