Q1 DLA PRACTICE

What is the domain?

• -4 < x ≤ 5

• -4 ≤ x < 5

• -3 < y < 3

• -3 ≤ y ≤ 3

What is the range?

• -4 < x ≤ 5

• -4 ≤ x < 5

• -3 < y < 3

• -3 ≤ y ≤ 3

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)
• (3,4) (4,-3) (7,4) (3, 8)
• (6,-5) (7, -3) (8, -1) (9, 1)
• (2, -2) (5, 9) (5, -7) (1, 4)

Is this table a function or not a function? 

• Function
• Not a Function

How would you write y = 2x - 3 in function notation?

• y = 2x-3

• f = 2x - 3

• f(x) = 2x-3

If a question asks you to find f(2), what does that mean?

• Let x = 2

• Let y = 2

Find f(2)

• 5

• 4

• 3

• 0

Find f(-1)

• -3

• 15

• 19

• 17

If f(x) = 3 Find the value of x.

• 2

• 4

• 6

• 0

 $5x+10=3x+18$  

• 4

• 0.8

• No Solution

• Infinite Solutions