Identifying Relations and Functions

An athlete ran at a constant speed for 12 seconds. The part of the linear function shown represents the distance the athlete ran in yards, y, as a function of the time in seconds, x. Which statement is false?

• The range is 0 ≤ x ≤ 100.

• After 6 seconds, the athlete ran 50 yards.

• The domain is 0 ≤ x ≤ 100.

• The most yards the athlete ran is 100 yards.

Tags

CCSS.HSF.IF.B.4

A swimming pool can be rented for $110 per hour. The pool can be rented for either 1 hour or 2 hours. If the pool is rented for x hours, the total cost can be represented by f(x) = 110x. What are the domain and range of the function for this situation?

• Domain: {1, 2}

  Range: {1, 2}

• Domain: {1, 2}

  Range: {110, 220}

• Domain: all real numbers

  Range: all real numbers

• Domain: all integers greater than or equal to zero

  Range: all integers greater than or equal to zero

Look at the image

Does it represents a function?

(hint: look at the arrows)

• Yes

• No

Tags

CCSS.8.F.A.1

A function is a relation.

• True

• False

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Which of the following is true about the Domain?

Select all that apply

• Often represented by X

• The input variable

• The output variable

• Often represented by Y

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is the range?

• 5

• 3

• 6

• 2

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

• Timothy (y) is taller than his son (x) three times

• A marble (x) is one third the weight of a rock (y).

• Destiny (y) is 3 years younger than Roy (x)

• Haley (y) has 3 more apples than Tanya (x)

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Young Sway is said to have four times more fans than Trey Clay. If Young Sway is represented as y, and Trey Clay is x, what is the function?

• y= 4x

• x = 4y

• y = 4 + x

• y = 4 - x

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

What is a relation?

• The Input Variable

• The Output Variable

• Goes between the Domain and Range

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Yana is 5 years older than Mark

What is the relation if Mark is represented by x?

• 5x

• 5 + x

• 5 - x

• x - 5

Tags

CCSS.6.EE.C.9