General Mathematics Pre-Test

Which of the following correspondence is a function?

I. One to one II. One to many III. Many to one

• I only

• II and III

• II only

• I and III

Which of the following is NOT a function?

• The rule that assigns the name of the school to each student.

• The rule that assigns to each person his/her surname.

• The rule that assigns to each person his/her mobile number

• The rule that assigns to each child his/her mother.

Which among the relations is NOT a function?

• {(0, 5), (0, 4), (4, 0), (5, 0)}

• {(–2, 5), (0, 5), (2, 5), (4, 5)}

• {(–3, 2), (–2, 5), (–1, 8), (3, 2)}

• {(8, 0), (7, 0), (6, 0), (9, 0)}

Which of the following mapping diagrams represent a function?

• 
• 
• 
• 

Which of the following graphs does not belong to the group?

• 
• 
• 
• 

 $In\ thefunction\ f\left(x\right)=2x,\ what\ is\ the\ value\ ofthe\ function\ ifx=0?$  

• 0

• 1

• 2

• 4

 $Givenf(x)=x^{98}–\ x^{50}+1,\ what\ is\ f\left(-1\right)?$  

• 0

• 1

• 48

• 148

• $2x–6$

• $4x–4$

• $2x+6$

• $4x+4$

• 
  

  $–4x–6$
  

• $–2x–6$

• $4x+6$

• $2x+6$

• 3x² – 14x + 5

• 3x² + 14x – 5

• 3x² – 14x – 5

• 3x – 14x² + 5