Lesson Worksheet: Graphs of Functions Mathematics

In this worksheet, we will practice representing a relation between two variables using graphs and using this to solve real-world problems.

Q1:

Let us consider the function 𝑓(𝑥)=8𝑥11.

Fill in the table.

𝑥101
𝑦=𝑓(𝑥)
  • A
    𝑥101
    𝑦=𝑓(𝑥)19113
  • B
    𝑥101
    𝑦=𝑓(𝑥)3113
  • C
    𝑥101
    𝑦=𝑓(𝑥)1983
  • D
    𝑥101
    𝑦=𝑓(𝑥)3113
  • E
    𝑥101
    𝑦=𝑓(𝑥)303

Identify the three points that lie on the line 𝑦=8𝑥11.

  • AA, C, E
  • BI, H, G
  • CA, C, D
  • DH, I, G
  • EB, C, D

Q2:

Omar rides his bike at a steady rate of 15 miles per hour. The function 𝑦=15𝑥 shows how time 𝑥 relates to the distance 𝑦. Which graph represents this function?

  • A
  • B
  • C
  • D
  • E

Q3:

By making a table of values, determine which of the following graphs represents the equation 𝑦=12𝑥+1.

  • A
  • B
  • C
  • D
  • E

Q4:

Consider the function 𝑓(𝑥)=2𝑥+5.

Fill in the table.

𝑥202
𝑦=𝑓(𝑥)
  • A
    𝑥202
    𝑦=𝑓(𝑥)151
  • B
    𝑥202
    𝑦=𝑓(𝑥)821
  • C
    𝑥202
    𝑦=𝑓(𝑥)951
  • D
    𝑥202
    𝑦=𝑓(𝑥)501
  • E
    𝑥202
    𝑦=𝑓(𝑥)129

Identify the three points that lie on the line 𝑦=2𝑥+5.

  • AH, F, J
  • BA, C, E
  • CH, I, G
  • DB, C, D
  • EI, H, J

Q5:

Consider the linear function 𝑓(𝑥)=52𝑥.

We can draw a straight line to represent this function. Complete the table to find the coordinates of points on the line.

𝑥−2−1012
𝑓(𝑥)
  • A9, 7, 6, 3, 1
  • B9, 7, 5, 3, 1
  • C1, 3, 5, 7, 9
  • D9, 7, 5, 3, 2

Which of the following is the graph of the function?

  • A
  • B
  • C
  • D

Which of these points is not on the line?

  • A(4,3)
  • B(3,11)
  • C(4,13)
  • D(3,1)
  • E(6,6)

Q6:

Which of the following graphs represents the function 𝑓(𝑥)=1?

  • A
  • B
  • C
  • D
  • E

Q7:

The table shows a linear function. Which of the following graphs represents the function?

𝑥210
𝑓(𝑥)246
  • A
  • B
  • C
  • D
  • E

Q8:

What function is represented in the figure below?

  • A𝑓(𝑥)=𝑥+1
  • B𝑓(𝑥)=𝑥1
  • C𝑓(𝑥)=2𝑥
  • D𝑓(𝑥)=2𝑥

Q9:

The following graph shows the money that Noura earns.

Write an equation to represent the relationship between dollars and time.

  • A𝑑=160𝑡
  • B𝑑=60𝑡
  • C𝑑=140𝑡
  • D𝑑=40𝑡
  • E𝑑=80𝑡

Q10:

Let us consider the function 𝑓(𝑥)=8𝑥11.

Fill in the table.

𝑥101
𝑦=𝑓(𝑥)
  • A
    𝑥101
    𝑦=𝑓(𝑥)19113
  • B
    𝑥101
    𝑦=𝑓(𝑥)3113
  • C
    𝑥101
    𝑦=𝑓(𝑥)1983
  • D
    𝑥101
    𝑦=𝑓(𝑥)3113
  • E
    𝑥101
    𝑦=𝑓(𝑥)303

Identify the three points that lie on the line 𝑦=8𝑥11.

  • AA, C, E
  • BI, H, G
  • CA, C, D
  • DH, I, G
  • EB, C, D

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