Algebra - Regents Practice #2

What are the zeros of the function f(x) = x² — 13x — 30? 

• —10 and 3
• 10 and —3
• —15 and 2
• 15 and —2

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

What is one point that lies in the solution set of the system of inequalities graphed?

• (0, 4)
• (-4, 1)
• (2, 4)
• (4, -1)

Tags

CCSS.HSA.REI.D.12

Which function represents exponential decay?

• f(x) = 100(0.9)^x 
• f(x) = 10(1.09)^x 
• f(x) = 1.9^x
• f(x) = ½(9)^x

Tags

CCSS.HSF-LE.A.1A

Given f(x) = -4x - 10 and f(x) = 10. Find x

• x = -5
• x = 5
• x = -50
• x = 30

Tags

CCSS.HSF.IF.A.2

What are the x- intercepts?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

Tags

CCSS.HSF-IF.C.7A

How many solutions does this graph have?

• one
• two
• no solutions
• cannot be determined

Tags

CCSS.HSA.REI.C.7

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

What is another word for zeros?

• y-intercepts
• roots
• vertex
• axis of symmetry

Tags

CCSS.HSF-IF.C.7C

The function f(x)=2x+8 models the total cost to order x amount of light bulbs from an online company. What is the appropriate domain of the function?

• All non-negative integers
• All non-negative rational numbers
• All integers
• All rational numbers

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

CCSS.HSF.IF.B.5

The function f(x)=3x+10 models the total cost Katie charges to babysit x amount of children. What is the most appropriate domain for the function?

• All rational numbers
• All integers
• All non-negative rational numbers
• All non-negative integers

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

CCSS.HSF.IF.B.5

Simplify the following radical: √150

• 5√15
• 5√2
• 5√6
• 15√5