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# NBT Mathematics Test Exemplar Questions : National Benchmark Test

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** Organisation **: National Benchmark Test

**: NBT Exam**

__Exam__**: Sample Question Paper**

__Document Type__**: Mathematics**

__Category or Subject__** Website **: http://www.nbt.ac.za/

**: https://www.southafricain.com/uploads/1716-MATExemplarQuestions.pdf**

__Download Sample Question Paper__## NBT Test Exemplar Questions

Questions in the section Functions and their Graphs will determine whether a test writer understands the properties of parabolas. Questions 1 and 2 are examples.

Related: Legislature Of The North West Province Sample Question Paper : www.southafricain.com/1712.html

1. The function f defined by y=-x2+6x-5

(A) A minimum y value and a negative y-intercept.

(B) A maximum y value and a positive y-intercept.

(C) A minimum y value and a positive y-intercept.

(D) A maximum y value and a negative y-intercept.

Under the heading Algebraic Processes one of the topics listed is Algebraic Manipulation. Question 2 is an example of a question where the answer cannot be deduced by substituting into the given options to rule out those that are correct.

2. The sum of the roots of the equation -x2+6x-5=0 is

(A) -5

(B) -4

(C) 3

(D) 6

Another topic listed under the heading Algebraic Processes is Number Sense. The following question depends on Number Sense (the bigger a number, the bigger its square root) as well as the concepts tested in the first two questions above.

3. The expression v-x2+6x-5 has a

(A) maximum value of 2

(B) minimum value of 2

(C) maximum value of 3

(D) minimum value of 3

** Question 4** is an example of the category Transformations and related concepts.

If the graph of x2+6x-5 is reflected in the ????-axis and the resulting graph is then reflected in the y-axis, the new equation is

(A) y=-(x-3)=4

(B) y=-(x2-6x-5)=4

(C) y=(x+3)+4

(D) y=x2+6x+5

One of the categories listed is Competent use of logical skills in making deductions and determining the validity of given assertions. Question 5 (which is also an example Number Sense) illustrates what this means. Writers need to assess the various options and make deductions about their validity.