Math III - Unit 1 practice

Given the functions f(x) = - 3x² - 2 and g(x) = 3x, find f(x) + g(x).

• -2
• -3x²+3x-2
• -3x²-3x+2
• 6x-2

Tags

CCSS.HSF-BF.A.1B

f(x)=2x + 4

g(x)=3x² - 1

Find f(x)*g(x)

• 6x⁴ + 12x³ - 4x² - 8x

• -6x³ + 12x² + 2x - 4

• 6x³ + 12x² - 2x - 4

• 5x² - 18x + 20

Tags

CCSS.HSF-BF.A.1B

 f(x) = 2x+1 and g(x) = 4x-5 
Find f(8) - g(8) 

• -20
• 10
• -10
• 20

Tags

CCSS.HSF.IF.A.2

f(x) = 2x and g(x) = 2x-7 
Find (f+g)(2).

• -7
• 1
• -1
• 8

Tags

CCSS.HSF-BF.A.1B

f(x) = 2x and g(x) = 2x-7

Find (f-g)(4).

• 0

• -9

• 7

• -8

Tags

CCSS.HSF-BF.A.1B

Given g(x) = -2x+2 and f(x) = 3x²+4, find (g+f)(-3).

• 39
• -27
• -23
• -19

Tags

CCSS.HSF-BF.A.1B

Describe the transformation of the graph f(x) to the graph of g(x).

• 
• 
• 
• 

Describe the transformation of the graph  y = -(x - 4)³ + 5

• Up 5 and Left 4 
• Reflect x-axis, Left 4, Up 5
• Reflect x-axis, Right 4, Up 5
• Right 4 and up 5

Tags

CCSS.HSF.BF.B.3

The absolute value graph was moved
right 2.5 
and
 down 9 
which equation is correct?

• y = |x - 2.5| - 9
• y = |x + 2.5| - 9
• y = |x - 2.5| + 9
• y = |x + 2.5| + 9

What is the equation of the absolute value function?

• f(x)= 4|x + 3|

• f(x)= 1/4 |x + 3|

• f(x)= 1/4 |x – 3|

• f(x)= 4|x – 3|

Tags

CCSS.HSF-IF.C.7D