Unit -2 (Expressions & Equations)

ƒ(x) = 2x + 9 is

• a function

• a term

• an expression

• like terms

3(2p - 5) =

• 6p - 5

• 6p - 15

• 6p + 15

• 5p - 2

3x + 7 × 5x - 4x =

• 24x

• 34x

• 50x²- 4x

• 46x

3a + 2(5a - 6) =

• 25a² - 30a

• 8a - 4

• 13a - 6

• 13a - 12

For the function ƒ(x) = 5x - 3, ƒ(4) is

• 20x - 12

• 5x + 1

• 5

• 17

The function for this function machine is

• ƒ(x) = 6x + 5

• ƒ(x) = 5x + 6

• ƒ(x) = 6x + 5x

• ƒ(x) = 30x

Simplify 5 (6p - 2) - 4 (3 + 2p)

• 38p - 22

• 17p + 10

• 38p - 2

• 22p - 22

Which of the following represents the function y=3x−5 as a table of values?

• 
• 
• 
• 

Which of the following is a correct simplification of the expression 3x+5x ?

• 15x

• 8x

• 8

• x

a x a x a x a x a is

• a x 5

• a⁵

• 5a

• (a^x)⁵