Changing the Subject of a Formula – Function Machines – Bingo Method Students should choose nine answers from the grid and place them randomly into a 3x3 square in their book. You may want to pause your display and choose questions according to difficulty during the game. Depending on time, students could win with a line, an X, or a ‘full house’ (all).

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Changing the Subject of a Formula using Funtion Machines BINGO! 45 54 23 82 37 12 76 25 91 Changing the Subject of a Formula using Funtion Machines

Choose your numbers… 𝑥= 5𝑦−1 4 𝑥=5𝑦+4 𝑥=3𝑦2−4 𝑥= 4𝑦−5 2 𝑥= 𝑦+5 4 𝑥=3𝑦 𝑥= 𝑦+5 4 𝑥=3𝑦 𝑥= 2𝑦−4 𝑥=3𝑦+6 𝑥=5𝑦−10 𝑥= 𝑦−4 𝑥= 𝑦 5 𝑥= 𝑦−1 5 𝑥= 𝑦−4 3 𝑥=2𝑦2+5 𝑥=2𝑦−5 𝑥= 𝑦+3 Draw a 3x3 grid in your book.

Choose your numbers… 5𝑦−1 4 5𝑦+4 3𝑦2−4 4𝑦−5 2 𝑦+5 4 3𝑦 2𝑦−4 3𝑦+6 5𝑦−10 𝑦 5 𝑦−1 5 𝑦−4 3 2𝑦2+5 2𝑦−5 𝑦+3 Draw a 3x3 grid in your book.

Make 𝑥 the subject of this formula. 𝑦= 𝑥 3 𝑥 ÷3 𝑦 𝑥 ×3 𝑦 𝑥=3𝑦

Make 𝑥 the subject of this formula. 𝑦=5𝑥 𝑥 ×5 𝑦 𝑥 ÷5 𝑦 𝑥= 𝑦 5

Make 𝑥 the subject of this formula. 𝑦=3𝑥+4 𝑥 × 3 + 4 𝑦 𝑥 ÷ 3 − 4 𝑦 𝑥= 𝑦−4 3

Make 𝑥 the subject of this formula. 𝑦=5𝑥+1 𝑥 ×5 + 1 𝑦 𝑥 ÷5 − 1 𝑦 𝑥= 𝑦−1 5

Make 𝑥 the subject of this formula. 𝑦= 𝑥+5 2 𝑥 + 5 ÷2 𝑦 𝑥 − 5 ×2 𝑦 𝑥=2𝑦−5

Make 𝑥 the subject of this formula. 𝑦= 𝑥−4 5 𝑥 − 4 ÷5 𝑦 𝑥 + 4 ×5 𝑦 𝑥=5𝑦+4

Make 𝑥 the subject of this formula. 𝑦= 𝑥 5 +2 𝑥 ÷5 + 2 𝑦 𝑥 ×5 − 2 𝑦 𝑥=5𝑦−10

Make 𝑥 the subject of this formula. 𝑦= 𝑥 3 −2 𝑥 ÷3 − 2 𝑦 𝑥 × 3 + 2 𝑦 𝑥=3𝑦+6

Make 𝑥 the subject of this formula. 𝑦=𝑥2+4 𝑥 𝑆𝑞 + 4 𝑦 𝑥 𝑆𝑞𝑅 − 4 𝑦 𝑥= 𝑦−4

Make 𝑥 the subject of this formula. 𝑦=𝑥2−3 𝑥 𝑆𝑞 − 3 𝑦 𝑥 𝑆𝑞𝑅 + 3 𝑦 𝑥= 𝑦+3

Make 𝑥 the subject of this formula. 𝑦= 2𝑥+5 4 𝑥 ×2 + 5 ÷4 𝑦 𝑥 ÷2 − 5 ×4 𝑦 𝑥= 4𝑦−5 2

Make 𝑥 the subject of this formula. 𝑦= 4𝑥+1 5 𝑥 ×4 + 1 ÷5 𝑦 𝑥 ÷4 − 1 ×5 𝑦 𝑥= 5𝑦−1 4

Make 𝑥 the subject of this formula. 𝑦= 𝑡+4 3 𝑥 + 4 ÷3 𝑆𝑞𝑅 𝑦 𝑥 − 4 × 3 𝑆𝑞 𝑦 𝑥=3𝑦2−4

Make 𝑥 the subject of this formula. 𝑦= 𝑡−5 2 𝑥 − 5 ÷2 𝑆𝑞𝑅 𝑦 𝑥 + 5 ×2 𝑆𝑞 𝑦 𝑥=2𝑦2+5

Make 𝑥 the subject of this formula. 𝑦= 𝑥2+4 2 𝑥 𝑆𝑞 + 4 ÷2 𝑦 𝑥 𝑆𝑞𝑅 − 4 ×2 𝑦 𝑥= 2𝑦−4

Make 𝑥 the subject of this formula. 𝑦=4𝑥2−5 𝑥 𝑆𝑞 ×4 − 5 𝑦 𝑥 𝑆𝑞𝑅 ÷4 + 5 𝑦 𝑥= 𝑦+5 4

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