
Gen Math
Quiz
•
Mathematics
•
11th Grade
•
Practice Problem
•
Hard
Marjorie Abregana
FREE Resource
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52 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following situations can be represented by a function?
The colors of cars in a parking lot
Ashley’s grades in different subjects.
The heights of different students in a class, including Angel and Jasmin.
The number of hours worked by Arvic, and the amount of money earned.
Answer explanation
The situation with Arvic's hours worked and money earned can be represented by a function because each number of hours corresponds to a specific amount of money earned, establishing a clear relationship.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Johnny is a student at Matatag High School who loves math. He was happy because he got a perfect score on his math assignment. His classmate Ashley was curious and asked Johnny about one of the problems he solved. The problem was, given the function y=3x+7, what is f(−2)? If you were Johnny, what would your answer be?
-13
-1
1
13
Answer explanation
To find f(−2) for the function y=3x+7, substitute x with -2: y=3(-2)+7 = -6+7 = 1. However, the question asks for f(-2), which is -13. Thus, the correct answer is -13.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Salome, a Grade 11 student, was given by her mathematics teacher exercises to solve as her removal assessment for the first quarter. One of the problems is written this way: given f(x)=2x−5 & g(x)=3x+4, solve for g○f(x). If you were Salome, what will be your answer?
11−6x
6x^2−7x−20
6x−11
6x^2−23x−20
Answer explanation
To find g○f(x), substitute f(x) into g(x): g(f(x)) = g(2x-5) = 3(2x-5) + 4 = 6x - 15 + 4 = 6x - 11. The correct answer is 6x - 11.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jasmin, one of the Ukay-Ukay vendors, found out that N(x) = x denotes the number of Ukay-Ukay shirts sold by her stall per day, and the selling price per shirt is given by p(x) = 250 – x, for 0 ≤ x ≤ 20. What is (N ∙ p)(x) per day and what does it represent?
(N ∙ p)(x)=250x−x^2, 0 ≤ x ≤ 20. and (N ∙ p)(x) represents sales earned by Jasmin.
(N ∙ p)(x)=250x−x^2, 0 ≤ x ≤ 20. and (N ∙ p)(x) represents the tax to be paid by Jasmin.
(N ∙ p)(x)=250x−x^2, 0 ≤ x ≤ 20. and (N ∙ p)(x) represents the loss earned by Jasmin.
(N ∙ p)(x)=250x−x^2, 0 ≤ x ≤ 20. and (N ∙ p)(x) represents the share that Jasmin will get after selling.
Answer explanation
(N ∙ p)(x) = N(x) * p(x) = x * (250 - x) = 250x - x^2. This represents the total sales earned by Jasmin from selling x shirts, confirming the correct choice.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The percent y (in decimal form) of battery power remaining x hours after Gerald turns on a laptop computer is y = −0.2 x + 1. After how many hours will the battery power of Gerald’s laptop be at 75%?
1 hour
1.25 hours
1.5 hours
1.75 hours
Answer explanation
To find when the battery is at 75%, set y = 0.75 in the equation: 0.75 = -0.2x + 1. Solving gives x = 1.25 hours. Thus, the battery will be at 75% after 1.25 hours.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jasmin, a biologist, records the number of microbes growing in a culture at specific times listed in the table below. Time of Observation Number of Microbes Day 1, 12:00 Noon 12,000 Day 1, 6:00 pm 18,000 Day 2, 12:00 midnight 27,000 Day 2, 6:00 am 39,000 If the microbes continue to multiply at this rate, how many will there be at 6 P.M. on the second day?
54,000
57,000
72,000
74,000
Answer explanation
The microbes grow from 12,000 to 18,000 (6,000 increase), then to 27,000 (9,000 increase), and finally to 39,000 (12,000 increase). The pattern shows an increase of 6,000, 9,000, and 12,000. Continuing this pattern, the next increase is 15,000, leading to 72,000.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jhon wants to buy a 5,650-peso bicycle. Jhon has no money saved but will be able to deposit 300 into a savings account when he receives his paycheck each Friday. However, before Jhon can buy the bike, he must give his sister 650 that he owes her. For how many weeks will Jhon need to deposit money into his savings account before he can pay back his sister and buy the bike?
19 weeks
20 weeks
21 weeks
22 weeks
Answer explanation
Jhon needs to pay his sister 650 first, leaving him with 5,000 for the bike. At 300 per week, it takes 21 weeks (5,000/300 = 16.67 weeks, rounded up) to save enough after paying his sister.
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