Function Evaluations, Compositions, Operations and Inverses

p(x) = 3x + 4
q(x) = 2x²
Find q(p(x))

• 6x² + 4

• 18x² + 48x + 32

• 18x² + 32

• None of these.

Tags

CCSS.HSF-BF.A.1C

Find the inverse of f(x) = -4x - 12

• f^-1(x) = 4x - 3

• f^-1(x) = -1/4x - 3

• f^-1(x) = 1/4x + 3

• f^-1(x) = -4x - 3

Tags

CCSS.HSF-BF.B.4A

What is the inverse of the points
(1,3)(2,4)(6,8)

• (3,1)(4,2)(8,6)

• (-3,-1)(-4,-2)(-8,-6)

• (1,3)(2,4)(6,8)

• (-1,-3)(-2,-4)(-6,-8)

Tags

CCSS.HSF-BF.B.4C

are these inverse functions?

• no

• yes

• no way to tell

Tags

CCSS.HSF-BF.B.4B

Are the following inverses of each other?

• True

• False

Tags

CCSS.HSF-BF.B.4B

If a function has the point (4,-2) then its inverse must have which point?

• (-4,-2)

• (-4,2)

• (-2,4)

• (2,-4)

Tags

CCSS.HSF-BF.B.4C

If f\left(x\right)=2x+1\ and\ g\left(x\right)=3x+2 Find\ \left(f\circ g\right)\left(x\right)

• f(g(x)) = 6x + 4

• f(g(x)) = 6x + 5

• f(g(x)) = 5x + 8

• f(g(x)) = 5x + 5

Tags

CCSS.HSF-BF.A.1C

Are the following inverses of each other? Use composition of functions. fog(x) and gof(x)

• True

• False

Tags

CCSS.HSF-BF.B.4B

Was the inverse function found correctly?

• no,

• yes

Tags

CCSS.HSF-BF.B.4A

Find the inverse of the function
f(x) = 3x − 5

• f^-1(x)=3x +5

• f^-1(x)=(x+5)/3

• f^-1(x)=3y-5

• f^-1(x)=3y+5

Tags

CCSS.HSF-BF.B.4A