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Punjab (PTB) · Chapter test · Free

9th Class Mathematics Chapter 10 TestUNIT 10: Graphs of Functions

30 marks · 40 minutes · 21 questions. Covers: UNIT 10: Graphs of Functions.

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9th Class Mathematics Chapter 10 Test

9th Class · Mathematics · Punjab (PTB)

Name: ____________Roll No: ________Class/Section: ________Date: ________Total marks: 30Time: 40 minutes

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

  1. In a reciprocal function  as x approaches zero, what happens to y? 

    1. It approaches infinity

    2. It approaches zero

    3. It becomes undefined

    4. It remains constant

  2. Which of the following represents an exponential decay function? 

    1. y = 2x

  3. For the function , what is the vertex of the parabola? 

    1. (0,0)

    2. (1,1)

  4. The function y=2x represents what kind of growth?

    1. Linear growth

    2. Exponential growth

    3. Exponential decay  

    4. Quadratic growth

  5. The function is a:

    1. Linear function

    2. Quadratic function 

    3. Cubic function

    4. Quartic function

  6. For the quadratic function what is the vertex? 

  7. The graph of represents: 

    1. A line 

    2. A parabola 

    3. A cubic curve 

    4. An exponential curve 

  8. The standard form of cubic functions.

    1. None of these

  9. Which function represents exponential decay?

  10. The graph of intersects the x-axis at: 

    1. (0,5)

    2. (5,0)

    3. (1,0)

Q2. Short questions (Attempt any 6 of 8 · 6 × 2 = 12)

  1. A company manufactures school bags. The function of producing x bags is C(x)= 1200 + 800x and the revenue from selling x bags is R(x)=50x. Determine the profit or loss when 250 bags are sold.

  2. How do you identify an exponential function from a table of values?

  3. What is the axis of symmetry of a quadratic function?

  4. What is an exponential function?

  5. What is a reciprocal function.

  6. Plot the graph of:  for .

  7. How does an exponential function behave for positive values of x?

  8. What is the general form of a linear function?

Q3. Long questions (Attempt any 2 of 3 · 2 × 4 = 8)

  1. Plot the graph of the following quadratic and cubic function:

  2. Plot the graph of the following function:

  3. Plot the graph of the following function: