Assn #56 - Functions and Graphs

What equation does the table represent?

• y=x+1
• y=x-1
• y=2x+1
• y=2x-1

Which equation matches the graph?

• y = 2x + 3
• y = -3
• y = 2x - 3
• y = -3x + 2

What is the y-intercept of the graph?

• 3
• -3
• 2
• -2

What is the x-intercept of the following graph?

• 0
• 6
• -4
• 2/3

Find the value of y when x = 2.

• 2
• 6
• 7
• 8

Do the ordered pairs make a function?

(0,1) (1,4) (4,1) (5,1)

• Yes, They make a function

• No, they do not make a function

Does the mapping diagram show a funciton?

• Yes, it shows a function

• No, it does not show a function

Which of the following list the ordered pairs of the function?

• (15,10) (45,20) (25,30) (35,40)

• (10,15) (20,25) (30,35) (40,45)

• (15,10) (25,20) (35,30) (45,40)

• (10,15) (20,45) (30,25) (40,35)

Write a function rule for "The output is four times the input"

• 11

• -24

• 25

• 24