Y9 Algebra assessment

If x = 3, what is y?
 $y=5x+3$  

• 8

• 5

• 15

• 18

If x = -2, what is y?
 $y=x^2-6$  

• -2

• -6

• -8

• 8

If x = 0.5, what is y?
 $y=4x-2$  

• -2

• 0

• 1

• 0.5

If Helen earns £6 an hour (h) and receives £5 bonus for every shift she works, write an expression for her total earnings (T).

• T = 11

• T = 6h + 5

• 6h + 5

• T=11h

Eleri makes jewellery. She sells bracelets for £b each and necklaces for £n each. Write an expression for the money she makes (P) when she sells seven bracelets and five necklaces.

• P = 12bn

• 7b + 5n

• P = 7b + 5n

• 12bn

Simplify fully 6a + 7a - 2a.

• 11a³

• 11a

• 15a

• 13a - 2a

Simplify fully 11t + 4z + 2t - 12z.

• 13t +16z

• 13t -16z

• 13t - 8z

• 5tz

Simplify fully 5x² + 7x + 2x² - 4.

• 14x - 4

• x(5x + 7)

• 7x² + 7x - 4

• 14x + 4

Expand and fully simplify x(x + 7).

• x + 7

• 2x + 7

• x² + 7x

• 9x

Expand and fully simplify 2x(4x - 6).

• 8x² -12x

• 8x - 6

• 8x² -6x

• 4x