General Mathematics - Functions

Which of the following is not true about function?

• Function is composed of two quantities where one depends on the other.

• One-to-one correspondence is a function.

• Many-to-one correspondence is a function.

• One-to-many correspondence is a function.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Which of the following relations is/are function/s?

• x = {(-1,2), (-3,4), (-1,7), (5,1)}

• g = {(-3,2), (3,1), (-3,2), (5,7)}

• h = {(6,1), (-2,3), (2, 6), (7, 2)}`

• y = {(2,3), (3,2), (-2,3), (3, -2)}

Tags

CCSS.8.F.A.1

A person can encode 1000 words in every hour of typing job. Which of the following expresses the total words W as a function of the number n of hours that the person can encode?

• 𝑊(𝑛)=1000+𝑛

• 𝑊(𝑛)=1000/𝑛

• 𝑊(𝑛)=1000𝑛

• 𝑊(𝑛)=1000−𝑛

Tags

CCSS.HSF-BF.A.1A

Eighty meters of fencing is available to enclose the rectangular garden of Mang Gustin. Give a function A that can represent the area that can be enclosed in terms of x.

• 𝐴(𝑥)=40𝑥−𝑥²

• 𝐴(𝑥)=80𝑥−𝑥²

• 𝐴(𝑥)=40𝑥²−𝑥

• 𝐴(𝑥)=80𝑥²−𝑥

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.SSE.A.1

CCSS.HSF.BF.A.1

Cotta National High School GPTA officers want to give t-shirts to all the students for the foundation day. They found a supplier that sells t-shirt for ₱200.00 per piece but can charge to ₱18,000.00 for a bulk order of 100 shirts and ₱175.00 for each excess t-shirt after that. Use a piecewise function to express the cost in terms of the number of t-shirt purchase

• a. 𝑡(𝑠)={18,000,𝑖f 𝑠 ≥100

• b. 𝑡(𝑠)={18,000, 𝑖f 𝑠 >100

• c. 𝑡(𝑠)={18,000, 𝑖f 𝑠 =100

• d. 𝑡(𝑠)={18,000, 𝑖f 𝑠 <100

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.2

CCSS.HSA.CED.A.3

CCSS.HSA.SSE.A.1

CCSS.HSF.BF.A.1

Which of the following shows an exponential function?

• f (x) = 3x+8

• f (x) = 2x³ – 7

• f (x) = 3^x – 6

• f ( x) = ||8|| – 8

Tags

CCSS.HSF.LE.A.1

Evaluate the function h(x) = |x| -11 given x = 3.5.

• -8

• 8

• -9

• 9

Tags

CCSS.HSF.IF.A.2

Give the value of the of the function c(x) = 3x² – 36 at c(5)

• -21

• 14

• 111

• 39

Tags

CCSS.HSF.IF.A.2

• 
• 
• 
• 

Tags

CCSS.HSF.IF.A.2

• 11

• 7/2

• -11

• -7/2

Tags

CCSS.HSF.IF.A.2