9/18 Domain and Range- Discrete Functions

Find the solution for the equation −8(n + 6) = −7(n + 7).

• 1

• -1

• no solution

f(x)=4x+5
f(4)=

• 21
• -11
• -31
• 25

Tags

CCSS.HSF.IF.A.2

what is the domain?

• X values

• Y valuess

• C values

• Ms. Gates

All of the y values or outputs are called what?

• Domain
• Range
• Relation
• Function

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is the range f(x) = x+3 if the domain is -2

• -1
• 1
• 5
• -5

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

What is the range of the function?

​ { ​ -3 ,​ (a)   ,​ (b)   ,​ (c)   ,​ 5 , ​ (d)   ,​ ​ (e)   }

• -1
• 1
• 3
• 7
• 9
• -2
• 0
• 2
• -3

What is the range?

• {-2,2,5}
• {1,3,5,6}
• all real numbers 
• -2<y<5

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

A local carpenter uses the function y=190x to determine the amount earned, y, for each bookcase sold. He has to sell between 5 and 10 bookcases each month in order to meet his sales goal. Find the domain and range of this situation.

• Domain: {5, 6, 7, 8, 9, 10}
  Range: {900, 1080, 1260, 1440, 1620, 1800}

• Domain: $5\le x\le10$
  Range: $900\le y\le1800$

• Domain: {900, 1080, 1260, 1440, 1620, 1800}
  Range: {5, 6, 7, 8, 9, 10}

• Domain: $900\le x\le1800$
  Range: $5\le y\le10$

What is the range of the following relation:
{ (9, -2), (4, 3), ( 8, 10) ,( -4, 8) }

*Hint* and ordered pair is (x,y)

• { -4, 4, 8, 9 }

• { -2, 3, 8, 10 }

• { 9, -2 , 4, 3 }

• {8, 10, -4, 8}

The booster club is selling school t-shirts for $10 each. Their initial cost to buy 30 t-shirts was $150. The profit, p, on the 30 shirts is a function of the number of t-shirts sold, t, can be found using the function p=10t-150.

Identify whether this is continuous or discrete and the domain/range.

• Continuous
  Domain: $0\le x\le30$

  Range: $-150\le y\le150$

• Continuous

  Domain: $-150<-x\le150$
  Range: $0\le y\le30$

• Discrete

  Domain: {0, 1, 2, 3, 4, 5, ..., 30}
  Range: {-150, -149, -148, ..., 150}

• Discrete

  Domain: {-150, -149, -148, ..., 150}
  Range: {0, 1, 2, 3, ..., 30}