Algebra 1 Inverse Function

Given that y varies inversely with x, if x =7 and y = 4, what is y when x = 2?

• 14

• 10

• 2

• -14

Determine the type of variation:

• Direct

• Inverse

• Neither

Does the equation show an inverse variation? 
y=10/x

• yes

• no

What are the asymptotes?

• x = -3        y = 1  

• x = 3         y = 1

• x = -3        y = -1

• x = 3         y = -1

Tags

CCSS.HSF-IF.C.7D

• A
• B
• C
• D

Tags

CCSS.HSF-BF.B.4A

Are these graphs inverses?

• yes

• no

• There is no way to tell

Tags

CCSS.HSF-BF.B.4B

Find the inverse: f(x) = x³-1

• f^-1(x)= ³√x+1

• f^-1(x)= ³√x-1

• f^-1(x)= (x-1)/3

• f^-1(x)= (x+1)/3

Tags

CCSS.HSF-BF.B.4A

What are the asymptotes?

• x = -1         y = -3

• x = 1          y = -3

• x = -1         y = 3

• x = 1          y = 3

Tags

CCSS.HSF-IF.C.7D

Which of the following represents the graph below?

• 
• 
• 
• 

Tags

CCSS.HSF-IF.C.7D

Suppose y varies inversely with x.
If y = 150 when x = 2, find y when x = 25.

• 300

• 75

• 1,875

• 12