QMI1500 ASSESSMENT 2 SEM ONE 2024 Elementary Quantitative Methods - QMI1500

2/27/24, 9:56 AM Assessment 2 (page 1 of 20)




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Question 1

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The parabola below is described by the quadratic function
2
y = ax + bx + c.




Choose the INCORRECT statement.


Considering the properties of this parabola,



Select one:
a. the equation of the axis of symmetry is x = 2 .



b. c > 0 .



c. a < 0 .



d. the discriminant is less than zero.



Clear my choice




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,2/27/24, 9:56 AM Assessment 2 (page 2 of 20)




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Question 2

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A diamond ring was bought a number of years ago for R3 180,00 . The value of the ring increases by 4% per year. Answer
the following questions:

a. Determine the exponential function that describes the value of the ring
after t years.

b. Determine the value of the ring nine years after it was bought.


Choose the correct answers.




Select one:
a.
a. V (t) = 3 180,00(1,4)
t
b. R4 526,13




b.
a. V (t) = (3 180,00 × 1,04)
t
b. R4 184,66




c.
a. V (t) = 3 180,00 × (1 + 0,04)
t
b. R4 352,04




d.
a. V (t) = 3 180,00 × 1,04
t
b. R4 526,13




Clear my choice




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, 2/27/24, 9:56 AM Assessment 2 (page 3 of 20)




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Question 3

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If
3
x − 5 < 1,
8

3
then what is the most accurate description of the value of y, if y = x − 10 ?
4




Select one:
a. y < 2




b. y < 18




c. y < 16




d. y < −18




Clear my choice




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